FIRE v London
In praise of Berkshire Hathaway
I think I first clocked Warren Buffett’s (and Charlie Munger RIP’s) Berkshire Hathaway around the...
11 months ago
I think I first clocked Warren Buffett’s (and Charlie Munger RIP’s) Berkshire Hathaway around the year 2000. I loved the story. Starting from, as the story was told back then, humble beginnings and a paper round, Warren Buffett (and Charlie – who I will stop mentioning but...
The Rational Walk
In the Zone
Biohacking can be taken too far, but the intelligent use of modern technology has the potential to...
7 months ago
Biohacking can be taken too far, but the intelligent use of modern technology has the potential to provide valuable insights about our health.
Citation Needed
Issue 71 – (Crypto) banks are not your friends
Celsius’ Alex Mashinsky pleads guilty to fraud, some Tornado Cash sanctions are overturned, and tech...
2 weeks ago
Celsius’ Alex Mashinsky pleads guilty to fraud, some Tornado Cash sanctions are overturned, and tech billionaires complain about “debanking”.
Mazdak
Tech Today - Apple Smart Home Camera
Subscribe to our newsletter at Mazdak.com
a month ago
Subscribe to our newsletter at Mazdak.com
Mazdak
Adobe Scraps $20 Billion Figma Deal
Adobe's blockbuster $20 billion bid for Figma, the web-based design darling, is officially off the...
a year ago
Adobe's blockbuster $20 billion bid for Figma, the web-based design darling, is officially off the table! This dramatic pivot throws a spotlight on the tightening grip of global regulators on tech mergers, leaving investors and industry players to wonder:
Commoncog
Understand the Shape of the Game You're Playing
What it looks like when you come up with a diagnosis for your business, a thing that is necessary...
a year ago
What it looks like when you come up with a diagnosis for your business, a thing that is necessary for strategy.
balajis.com
All It Takes Is All You Got
Your assets are the government's collateral.
8 months ago
Your assets are the government's collateral.
The Rational Walk
Burlington Northern Santa Fe — 2023 Results
Warren Buffett is concerned about the performance of Berkshire's railroad
9 months ago
Warren Buffett is concerned about the performance of Berkshire's railroad
Bits about Money
Improving how credit cards work under the covers
Card networks are legacy systems. Some bugs have persisted for decades, surprisingly, but they can...
a year ago
Card networks are legacy systems. Some bugs have persisted for decades, surprisingly, but they can be fixed. Stripe provides examples.
The Rational Walk
Just Hold the Goddamn Stock!
Charlie Munger's solution to estate planning at Berkshire was simple: Just Hold the Goddamn Stock!...
3 months ago
Charlie Munger's solution to estate planning at Berkshire was simple: Just Hold the Goddamn Stock! Unfortunately, his advice is not easy to follow.
Musings on Markets
Catastrophic Risk: Investing and Business Implications
In the context of valuing companies, and sharing those valuations, I do get suggestions from readers...
10 months ago
In the context of valuing companies, and sharing those valuations, I do get suggestions from readers on companies that I should value next. While I don't have the time or the bandwidth to value all of the suggested companies, a reader from Iceland, a couple of weeks ago, made a...
Calculated Risk
Personal Income increased 0.3% in November; Spending increased 0.4%
The BEA released the Personal Income and Outlays report for November:
Personal income increased...
2 days ago
The BEA released the Personal Income and Outlays report for November:
Personal income increased $71.1 billion (0.3 percent at a monthly rate) in November, according to estimates released today by the U.S. Bureau of Economic Analysis. Disposable personal income (DPI), personal...
The Rational Walk
Hesiod’s Works and Days
One of the oldest surviving books provides advice that is just as relevant to our lives today as it...
7 months ago
One of the oldest surviving books provides advice that is just as relevant to our lives today as it was 2,700 years ago.
FIRE v London
My 20 year property returns
I was pleased to have reached the 10 year point of tracking my investment portfolio last month. But...
a year ago
I was pleased to have reached the 10 year point of tracking my investment portfolio last month. But my net worth includes an important asset class – property – that I don’t normally track, but which I have held in some form for over 20 years. So, this post takes a look at how my…...
Citation Needed
Review: Chris Dixon's Read Write Own
Prominent crypto venture capitalist Chris Dixon provides an unconvincing bible for blockchain...
10 months ago
Prominent crypto venture capitalist Chris Dixon provides an unconvincing bible for blockchain solutionists.
balajis.com
#3 - The President of Palau
Listen now (51 min) | The President of Palau and Balaji discuss how the tiny island country is...
a year ago
Listen now (51 min) | The President of Palau and Balaji discuss how the tiny island country is becoming a digital leader, experimenting with everything from on-chain identity to drone delivery. Despite having less than 20,000 citizens, Palau is a full UN member state. Its path to...
Moneyness
Another Indian payments idea: a lightweight portable payments system for catastrophes
India is so far ahead of most of the world when it comes to payments technology that when a new...
a year ago
India is so far ahead of most of the world when it comes to payments technology that when a new Indian payments idea emerges, we should probably pay attention.
In its recent annual report, the Reserve Bank of India, the country's central bank, put forward the idea of a...
Farnam Street
A Wandering Mind: How Travel Can Change the Way You Think
Most people travel as an observer, and as a result, “see” a lot. When you travel as an active...
over a year ago
Most people travel as an observer, and as a result, “see” a lot. When you travel as an active participant, the experience can transform the way you think, and how you see the world. *** Here’s a situation familiar to many of us: We decide to take a vacation and go somewhere...
The Rational Walk
The Digest #184
Ed Thorp: A Man for All Markets, Howard Marks on easy money, Active patience, Activist investing,...
11 months ago
Ed Thorp: A Man for All Markets, Howard Marks on easy money, Active patience, Activist investing, Damodaran's 2024 data update, Michael Ovitz, Live Oak, Red Bull, Capital allocation
Commoncog
Members Preview: An Easier Way to Create XmR Charts
Early access to some software we've built to make XmR charts more accessible.
9 months ago
Early access to some software we've built to make XmR charts more accessible.
Mazdak
The Grim Outlook for Offices in 2024
The future of your workspace is facing some serious turbulence.
a year ago
The future of your workspace is facing some serious turbulence.
Mazdak
Walmart Takes a Big Swing at the Advertising Market with Vizio Acquisition
In a move that sent ripples through the tech and advertising worlds, Walmart announced its...
10 months ago
In a move that sent ripples through the tech and advertising worlds, Walmart announced its acquisition of smart TV maker Vizio for $2.3 billion. This deal is far more than just about TVs; it's a strategic play by Walmart to become a major force in the booming
Moneyness
It's time to trash the "store of value" function of money
When we first learn about money and banking in high school or university, we are all taught that...
a week ago
When we first learn about money and banking in high school or university, we are all taught that money has three functions: medium of exchange, unit of account, and store of value. Maybe it’s time for educators to throw out this triumvirate. It’s not very accurate.
We need a...
FIRE v London
10 year review
Wahoop! I have made it through ten years. In fact, I’ve had a trackable portfolio for over 20 years....
a year ago
Wahoop! I have made it through ten years. In fact, I’ve had a trackable portfolio for over 20 years. But 10 years ago I started tracking my portfolio in a consistent, monthly way – unitising its performance so I could measure its return. It wasn’t until 2015 that I started this...
FIRE v London
Dec ’23 – 2023 in review
It’s the start of a calendar year. Let’s take a look at what 2023 did to me financially. I’m...
11 months ago
It’s the start of a calendar year. Let’s take a look at what 2023 did to me financially. I’m following the same structure I’ve used for the last few years (2022, 2021, and 2020). Overall, 2023 was a good year on almost all measures – thanks in particular to Q4 which saw the US...
Calculated Risk
Ten Economic Questions for 2025
Here is a review of the Ten Economic Questions for 2024.
I'll follow up with some thoughts on each...
5 hours ago
Here is a review of the Ten Economic Questions for 2024.
I'll follow up with some thoughts on each of these questions.
We can assume the 2017 Tax Cuts and Jobs Act (TCJA) will be extended. That larger tariffs will be imposed on some imports, and there will be some...
The Rational Walk
The Digest #199
Daily Journal reduces leverage, iPad Pro vs. MacBooks, Independent platforms, Berkshire Hathaway's...
7 months ago
Daily Journal reduces leverage, iPad Pro vs. MacBooks, Independent platforms, Berkshire Hathaway's annual meeting, A long run perspective, the parent-therapy trap
Seeking Wisdom
Attention is all you need – Part 1
This is the 10th post in my series on building a toy GPT. Read my earlier posts first for better...
12 months ago
This is the 10th post in my series on building a toy GPT. Read my earlier posts first for better understanding. I asked ChatGPT to complete the sentence given the phrase: “I chose that bank for”. It completed the sentences sensibly. Here are the four sentences it generated: In...
The Rational Walk
The Digest #169
Apple Watch, Musical Chairs at Dollar General, IPOs, Impact Investing, Buffett in 1988, Mapping the...
a year ago
Apple Watch, Musical Chairs at Dollar General, IPOs, Impact Investing, Buffett in 1988, Mapping the human brain, Interviews of Nassim Taleb, Jensen Huang, John and Patrick Collison, and more ...
Citation Needed
"The Monkey Fraud": An interview with Ryder Ripps
An interview with Ryder Ripps, a defendant in the Yuga Labs v. Ripps case about Bored Ape Yacht Club...
8 months ago
An interview with Ryder Ripps, a defendant in the Yuga Labs v. Ripps case about Bored Ape Yacht Club trademark infringement and racism.
Commoncog
The Amazon Weekly Business Review
Everything you need to know about the Amazon Weekly Business Review: how it works, why it works, and...
5 months ago
Everything you need to know about the Amazon Weekly Business Review: how it works, why it works, and how it helps Amazon win.
Commoncog
What’s an Operational Definition Anyway?
Two principles on collecting data, from the field of Statistical Process Control. As with most...
a year ago
Two principles on collecting data, from the field of Statistical Process Control. As with most principles in SPC, this is both simpler and more important than you might think.
The Rational Walk
The Digest #216
Trading Berkshire, The Theban Plays, The laws of economics, Fed fairy tales, Buffett's "retirement",...
2 months ago
Trading Berkshire, The Theban Plays, The laws of economics, Fed fairy tales, Buffett's "retirement", Caro's writing process, Buffett's ground rules, Sherwin Williams, Mysterious owls
Moneyness
How my views on financial privacy have evolved over a decade
I began exploring the topic of financial privacy and payment anonymity in the early days of this...
3 weeks ago
I began exploring the topic of financial privacy and payment anonymity in the early days of this blog. Over the past decade, my views have shifted significantly—here's how and why.
Rereading my earliest mentions of financial privacy, they now seem a bit... idealistic? extreme?...
The Rational Walk
The Digest #182
Passive Investing, Low Trust Societies, Greg Abel in the spotlight, Capital allocation at Berkshire,...
12 months ago
Passive Investing, Low Trust Societies, Greg Abel in the spotlight, Capital allocation at Berkshire, Better habits for 2024, Amusing CPA stories, Ben Graham, Charlie Munger, Pernod Ricard
Calculated Risk
December 20th COVID Update: COVID in Wastewater Increasing
Note: Mortgage rates are from MortgageNewsDaily.com and are for top tier scenarios.
For deaths, I'm...
yesterday
Note: Mortgage rates are from MortgageNewsDaily.com and are for top tier scenarios.
For deaths, I'm currently using 4 weeks ago for "now", since the most recent three weeks will be revised significantly.
Note: "Effective May 1, 2024, hospitals are no longer required to report...
Moneyness
Setelinleikkaus: When Finns snipped their cash in half to curb inflation
On the last day of 1945, with World War II finally behind it, Finland's government announced a new...
a month ago
On the last day of 1945, with World War II finally behind it, Finland's government announced a new and very strange policy.
All Finns were required to take out a pair of scissors and snip their banknotes in half. This was known in Finland as setelinleikkaus, or banknote cutting....
The Rational Walk
The Digest #165
Buffett on Inflation, Dollar General, Due Diligence, Personal Libraries, The role of AI in drug...
a year ago
Buffett on Inflation, Dollar General, Due Diligence, Personal Libraries, The role of AI in drug discovery, Small-cap opportunities, and interviews of Peter Brown, Bill Gross, Chris Bloomstran.
The Rational Walk
Charlie Munger (1924 – 2023)
A life well lived
a year ago
FIRE v London
Becoming an ISA $millionaire
This time last year I wrote that my annual ISA update was many months late. I had delayed it until...
a year ago
This time last year I wrote that my annual ISA update was many months late. I had delayed it until using my full annual ISA allowance(s), which took me much longer than usual last year. This year I actually completed my ISA topups in April, within a few weeks of the start of the...
Citation Needed
Guilty or coerced? Ryan Salame’s last interviews before prison
Unpacking my conversation with FTX executive Ryan Salame, where we discussed his claims that he’s...
2 months ago
Unpacking my conversation with FTX executive Ryan Salame, where we discussed his claims that he’s innocent of the charges for which he’s now serving seven and a half years in prison.
The Rational Walk
The Digest #177
Remembering Charlie Munger
a year ago
Remembering Charlie Munger
Mazdak
Waymo in Japan, Veo 2 AI video, Snapchat Monetization ...
Google DeepMind has upped the game in AI video generation.
5 days ago
Google DeepMind has upped the game in AI video generation.
Seeking Wisdom
Buffett’s Bathtub Memory
I love reading physical books. But there’s one problem with physical books. My shelf space is...
a year ago
I love reading physical books. But there’s one problem with physical books. My shelf space is limited. To overcome the shelf space limitation, I developed a simple fitness function for my books. Books that I won’t reread will be donated to the library. Don’t get me wrong. They...
The Diff
Longreads + Open Thread
Inflation, AI, Linkrot, Data, Research, Pod Shops, Life Advice, Nvidia
yesterday
Inflation, AI, Linkrot, Data, Research, Pod Shops, Life Advice, Nvidia
balajis.com
The Fiat Crisis
This is not a financial crisis. It’s a fiat crisis.
a year ago
This is not a financial crisis. It’s a fiat crisis.
Bits about Money
Debanking (and Debunking?)
Crypto advocates kicked off a recent, somewhat politicized, discussion of debanking. Strap in for...
a week ago
Crypto advocates kicked off a recent, somewhat politicized, discussion of debanking. Strap in for scintillating banking compliance trivia.
Moneyness
Is it legal to mix cash in a jar?
Chris Blec asks the following question:
Source: Twitter
Chris's premise is that it is "not...
a year ago
Chris Blec asks the following question:
Source: Twitter
Chris's premise is that it is "not illegal" for him to get together with a bunch of strangers to mix cash. But that's not quite right. It can be legal. It can also be illegal. To determine which it is, we need to...
Mazdak
Big Tech Donating to Trump's Inaugural Fund, Teens' Online Habits, More Tech Updates
Amazon is reportedly donating $1M to Trump’s inaugural fund and will stream the inauguration on...
a week ago
Amazon is reportedly donating $1M to Trump’s inaugural fund and will stream the inauguration on Prime Video 😀
Mazdak
Meta Fined & FBI on Polymarket
Meta slapped with a HUGE EU fine, the FBI is investigating Polymarket...
a month ago
Meta slapped with a HUGE EU fine, the FBI is investigating Polymarket...
Mazdak
2024: A Roadmap for AI's Next Big Step
2023 was a whirlwind year for artificial intelligence (AI). ChatGPT wowed us with its ability to...
12 months ago
2023 was a whirlwind year for artificial intelligence (AI). ChatGPT wowed us with its ability to generate human-quality text, while chipmaker Nvidia pushed the boundaries of what's possible with graphics processing units (GPUs). But amidst the hype, there were also concerns about...
Calculated Risk
PCE Measure of Shelter Decreases to 4.8% YoY in November
Here is a graph of the year-over-year change in shelter from the CPI report and housing from the PCE...
2 days ago
Here is a graph of the year-over-year change in shelter from the CPI report and housing from the PCE report this morning, both through November 2024.
CPI Shelter was up 4.8% year-over-year in November, down from 4.9% in October, and down from the cycle peak of 8.2% in March...
Musings on Markets
Data Update 2 for 2024: A Stock Comeback - The Low Expectations Game!
Heading into 2023, US equities looked like they were heading into a sea of troubles, with inflation...
11 months ago
Heading into 2023, US equities looked like they were heading into a sea of troubles, with inflation out of control and a recession on the horizon. While stocks had their ups and downs during the year, they ended the year strong, and recouped, at least in the aggregate, most of...
Bits about Money
Deposit insurance maximization as a service
In the wake of the recent banking crisis, there is some attention to deposit insurance limits. Some...
a year ago
In the wake of the recent banking crisis, there is some attention to deposit insurance limits. Some products increase them; here is how.
Moneyness
Thoughts on the Tornado Cash defence and what happens when everyone adopts it
Payments companies are regularly punished for engaging in money laundering. MoneyGram, for instance,...
8 months ago
Payments companies are regularly punished for engaging in money laundering. MoneyGram, for instance, has has to pay multiple fines. Western Union was famously busted in 2017. Meanwhile, Cash App is being probed as we speak for inadequate anti-money laundering controls.
In the...
The Rational Walk
The Digest #220
The Intelligent Investor, Antitrust and Big Tech, Berkshire Hathaway's Moat, Nuclear War Risks, The...
2 months ago
The Intelligent Investor, Antitrust and Big Tech, Berkshire Hathaway's Moat, Nuclear War Risks, The Invisible Man, AIG's Rise & Fall, Housing Prices, Barbary Wars, Speeches of Pericles
Calculated Risk
Lawler: Early Read on Existing Home Sales in November
Today, in the Calculated Risk Real Estate Newsletter: Lawler: Early Read on Existing Home Sales in...
5 days ago
Today, in the Calculated Risk Real Estate Newsletter: Lawler: Early Read on Existing Home Sales in November
A brief excerpt:
From housing economist Tom Lawler:
seasonally adjusted annual rate of 4.09 million in November, up 3.3% from October’s preliminary pace and up 4.6% from...
Mazdak
AI Fuels Alphabet's Growth
Google's parent company Alphabet is on a roll, and AI is the fuel.
a month ago
Google's parent company Alphabet is on a roll, and AI is the fuel.
Moneyness
Pricing the anonymity of banknotes
Banknotes are useful. Not only do they provide their owner with a
standard set of payments...
a month ago
Banknotes are useful. Not only do they provide their owner with a
standard set of payments services, they also offer financial anonymity.
This post introduces the idea of trying to price the anonymity
component.
To help think about why we might want to price anonymous...
The Rational Walk
Pilot’s Founders vs. Berkshire Hathaway
Warren Buffett's reputation as a straight shooter is called into question by the Haslam family in a...
a year ago
Warren Buffett's reputation as a straight shooter is called into question by the Haslam family in a dispute over the valuation of their remaining 20% interest.
Calculated Risk
Q4 GDP Tracking: 2.4% to 3.1%
From Goldman:
Following this morning’s data, we left our Q4 GDP tracking estimate unchanged at 2.4%...
2 days ago
From Goldman:
Following this morning’s data, we left our Q4 GDP tracking estimate unchanged at 2.4% (quarter-over-quarter annualized) and our Q4 domestic final sales forecast unchanged at +2.3% [Dec 20th estimate]
emphasis added
And from the Atlanta Fed: GDPNow
The GDPNow model...
Moneyness
The first round of U.S. secondary sanctions on Russia is working
Turkish banks halted transactions with Russian banks last month and are only slowly reintroducing...
10 months ago
Turkish banks halted transactions with Russian banks last month and are only slowly reintroducing payments for a narrow range of products that are on a so-called "green list," reports Ragip Soylu. This broad debanking of Russia by Turkey is part of the fallout from President...
The Rational Walk
The Digest #224
Edith Hamilton on human stupidity, BHE's latest investor presentation, Berkshire's 13-F, Extending...
a month ago
Edith Hamilton on human stupidity, BHE's latest investor presentation, Berkshire's 13-F, Extending human lifespan, Fastenal's success story, Buffett's early investments, IKEA's founder
balajis.com
Crypto Twitter Found SBF's Fraud
The establishment did nothing until the internet revealed everything.
a year ago
The establishment did nothing until the internet revealed everything.
balajis.com
The Bitcoin ETF is the spiritual reversal of Executive Order 6102
Back in 1935, they seized the gold. But now, digital gold is back.
11 months ago
Back in 1935, they seized the gold. But now, digital gold is back.
The Rational Walk
The Digest #225
A Dangerous Interregnum, Trump's Energy Policy, Damodaran on ESG, Buffett in 1970, Inflation's Role...
a month ago
A Dangerous Interregnum, Trump's Energy Policy, Damodaran on ESG, Buffett in 1970, Inflation's Role in Trump's Victory, Taxes in Retirement, James J. Hill, IKEA, F. A. Hayek, Shakespeare
balajis.com
The Network School
We’re starting a new school near Singapore for the dark talent of the world. Apply online at...
4 months ago
We’re starting a new school near Singapore for the dark talent of the world. Apply online at ns.com/apply.
Citation Needed
Issue 49 – And so the Lord says "give them a 10x"
Bitcoin ETP approval, God-sent crypto scammers, and more trouble in Justin Sun's world.
11 months ago
Bitcoin ETP approval, God-sent crypto scammers, and more trouble in Justin Sun's world.
Bits about Money
Credit cards as a legacy system
Credit cards have been in use for almost 75 years. Some long-ago decisions still cause consequences...
over a year ago
Credit cards have been in use for almost 75 years. Some long-ago decisions still cause consequences in the present day. But change is possible.
Calculated Risk
FDIC: Number of Problem Banks Increased Slightly in Q3 2024
The FDIC released the Quarterly Banking Profile for Q3 2024:
The Industry’s Net Income Decreased...
a week ago
The FDIC released the Quarterly Banking Profile for Q3 2024:
The Industry’s Net Income Decreased From the Prior Quarter, Driven by One-Time Items
Asset Quality Metrics Remained Generally Favorable, Though Weakness in Certain Portfolios
Persists
the industry reported the largest...
Calculated Risk
Realtor.com Reports Active Inventory Up 23.5% YoY
What this means: On a weekly basis, Realtor.com reports the year-over-year change in active...
a week ago
What this means: On a weekly basis, Realtor.com reports the year-over-year change in active inventory and new listings. On a monthly basis, they report total inventory. For November, Realtor.com reported inventory was up 26.2% YoY, but still down 21.5% compared to the 2017 to...
Commoncog
Is This a Moat: Mailchimp and PayPal’s Algorithmic Advantage
Two case studies of real world competitive advantage, followed by a question: was this a moat or...
over a year ago
Two case studies of real world competitive advantage, followed by a question: was this a moat or not?
balajis.com
#1 - Vitalik Buterin on Starting New Countries, Upgrading Ethereum, and Improving Yourself
Listen now (118 min) | A discussion between Vitalik Buterin and Balaji Srinivasan on starting new...
a year ago
Listen now (118 min) | A discussion between Vitalik Buterin and Balaji Srinivasan on starting new countries, improving yourself, and upgrading Ethereum. OUTLINE 00:00 - Introduction 01:27 - A brief history of Ethereum 16:54 - The DAO hack 20:32 - The Devcon 2 attack 33:24 - The...
Citation Needed
Citation Needed has a new home
Citation Needed is no longer hosted on Substack. Welcome to my antifascist bar.
11 months ago
Citation Needed is no longer hosted on Substack. Welcome to my antifascist bar.
Mazdak
In the AI Race: Embrace Commoditization, Focus on Customer Value
The world of AI is a fast-paced and ever-evolving landscape, where startups are constantly vying for...
a year ago
The world of AI is a fast-paced and ever-evolving landscape, where startups are constantly vying for attention and a slice of the market pie. In this competitive environment, it's easy to get caught up in the pursuit of proprietary components and cutting-edge algorithms,...
Musings on Markets
The Corporate Life Cycle: Corporate Finance, Valuation and Investing Implications!
As I reveal my ignorance about TikTok trends, social media celebrities and Gen Z slang, my children...
4 months ago
As I reveal my ignorance about TikTok trends, social media celebrities and Gen Z slang, my children are quick to point out my age, and I accept that reality, for the most part. I understand that I am too old to exercise without stretching first or eat a heaping plate of cheese...
Mazdak
The Growth Rocket Fuel of Low Gross Margin Businesses
When most people think of successful businesses, they think of businesses with high gross margins....
a year ago
When most people think of successful businesses, they think of businesses with high gross margins. After all, a high gross margin means that a business is making a lot of money on each sale. However, there are a number of successful businesses that have low gross margins. These...
Mazdak
A Guide to 2024 Tax Brackets and Rates (Canada 🇨🇦)
Tax season can be a daunting journey, with its intricate paths and hidden obstacles. For Canadian...
11 months ago
Tax season can be a daunting journey, with its intricate paths and hidden obstacles. For Canadian taxpayers, understanding the tax code and optimizing their financial position requires careful planning and informed decisions. This comprehensive guide equips you with the knowledge...
Mazdak
Mastering Twitter/X Growth: Strategies to Skyrocket Your Follower Count
Twitter/X stands as one of the leading platforms for sharing ideas, connecting with others, and...
a year ago
Twitter/X stands as one of the leading platforms for sharing ideas, connecting with others, and building your personal brand. With the right strategies, you can transform your Twitter presence into a thriving community of engaged followers. In this blog post, I'll dive into...
Mazdak
Tesla's Trump Card: How a Presidency Could Fuel a Trillion-Dollar Boom
What happens when a polarizing president and an electric vehicle giant collide?
a month ago
What happens when a polarizing president and an electric vehicle giant collide?
The Rational Walk
The Digest #157
Munger on windowless dorms, Damodaran on country risk, Disney's brand, Working without working, The...
a year ago
Munger on windowless dorms, Damodaran on country risk, Disney's brand, Working without working, The comfort crisis, Fairfax, Markel, Vision Pro's breakthrough, iPhone hacks
Mazdak
The Big News: ChatGPT Pays Up for Content, Ushering in a New Era for Media & AI
Get ready for a paradigm shift, folks! News just dropped that OpenAI, the brains behind ChatGPT, has...
a year ago
Get ready for a paradigm shift, folks! News just dropped that OpenAI, the brains behind ChatGPT, has signed a multi-year licensing deal with Axel Springer, the media giant behind Politico and Business Insider. This isn't just any deal, it's a game-changer
FIRE v London
Oct ’24: Budgets & broad shoulders
I haven’t seen much of London in October. I’ve been away every weekend in October, partly in the UK...
a month ago
I haven’t seen much of London in October. I’ve been away every weekend in October, partly in the UK and partly visiting friends overseas. And now we’re in November, the clocks have gone back, but temperatures haven’t plummeted yet. London feels busy – pubs still have crowds...
Musings on Markets
Data Update 5 for 2023: The Earnings Test
As I have argued in all four of my posts, so far, about 2022, it was year when we saw a return to...
a year ago
As I have argued in all four of my posts, so far, about 2022, it was year when we saw a return to normalcy on many fronts, as treasury rates reverted back to pre-2008 levels, and risk capital discovered that risk has a downside. During the course of the year, investors also...
The Rational Walk
Superinvestor Portfolio Changes — Q3 2023
A few observations based on recent 13F filings, with a focus on Berkshire Hathaway, Dollar General,...
a year ago
A few observations based on recent 13F filings, with a focus on Berkshire Hathaway, Dollar General, Markel, and Semper Augustus.
Mazdak
Apple & Google Face Mounting Threats to $500 Billion Market
The $500 billion app store market, which has been a cash cow for Apple and Google for years, is...
a year ago
The $500 billion app store market, which has been a cash cow for Apple and Google for years, is facing a growing number of threats. A recent court ruling against Google and new regulations in Europe and Asia could force the two tech giants to open up their app stores to more...
The Rational Walk
Real Estate Adventures
Buying real estate can be intimidating and complicated. This article describes two experiences with...
9 months ago
Buying real estate can be intimidating and complicated. This article describes two experiences with realtors, one positive and one negative.
Citation Needed
Issue 48 – Bitcoin has "no chance" of going to the moon
Bitcoin ETF fakeouts, imaginary CEOs, and a bridge hack make for an eventful start to the new year.
11 months ago
Bitcoin ETF fakeouts, imaginary CEOs, and a bridge hack make for an eventful start to the new year.
Citation Needed
Issue 70 – The Cryptocurrency States of America
Crypto’s efforts to buy the 2024 elections paid off, and we’re in for a bumpy ride.
a month ago
Crypto’s efforts to buy the 2024 elections paid off, and we’re in for a bumpy ride.
Commoncog
Cultural Advantage is Counter Positioning
Competitive advantages in business that come from cultural differences tend to be...
over a year ago
Competitive advantages in business that come from cultural differences tend to be counter-positioning, not process power. Why this is surprising, and why it matters.
Musings on Markets
AI's Winners, Losers and Wannabes: An NVIDIA Valuation, with the AI Boost!
I will start this post with a couple of confessions. The first is that my portfolio has held up well...
a year ago
I will start this post with a couple of confessions. The first is that my portfolio has held up well this year, in a market that has been top-heavy and tech-driven, and one big reason is that it contains both NVIDIA and Microsoft, two companies that have benefited from the AI...
Moneyness
Bitcoin as a tool of U.S. economic statecraft
Riot Platform's Rockdale, Texas facility, North America’s largest Bitcoin mining farm by developed...
4 months ago
Riot Platform's Rockdale, Texas facility, North America’s largest Bitcoin mining farm by developed capacity [source]
Can a network that has been marketed as being resistant to government power be harnessed by the U.S. administrative state in order to attain its foreign policy...
Bits about Money
The infrastructure behind ATMs
ATMs are connected to banks by networks which operate little-understood payment rails.
a year ago
ATMs are connected to banks by networks which operate little-understood payment rails.
FIRE v London
Apr ’23: Wind and windfalls
April saw the season of long weekends begin here in the UK. Easter saw me inspired by the Ermine to...
a year ago
April saw the season of long weekends begin here in the UK. Easter saw me inspired by the Ermine to check out Dorset’s Chesil beach. We struck lucky with the weather and had a fine, distinctly non-London, time, over a very blustery Easter weekend. My walking shoes seem to have...
The Rational Walk
The Digest #173
Berkshire's Q3 earnings, Munger on retailing, SBF's strange philosophy, Rob Henderson on reading,...
a year ago
Berkshire's Q3 earnings, Munger on retailing, SBF's strange philosophy, Rob Henderson on reading, Howard Marks on a full return world, Morgan Housel on writing that sells, Cities on Mars
FIRE v London
Nov ’24: 3x
London life I’ve been keeping busy as winter in London sets in. The Christmas lights are all out and...
2 weeks ago
London life I’ve been keeping busy as winter in London sets in. The Christmas lights are all out and looking resplendent, and both the West End and the City are feeling pretty buzzy. For all the general ‘UK stuck in the weeds’ economic commentary, we feel a long way from any talk...
Moneyness
Why my favorite coinage is Byzantine coinage
What do I like about Byzantine coinage?
Most people probably admire the Byzantine solidus, a gold...
9 months ago
What do I like about Byzantine coinage?
Most people probably admire the Byzantine solidus, a gold coin that maintained its weight and purity for over 600 years, which is quite remarkable for a coin. The solidus was exported all over the world, including to Europe, which lacked...
Mazdak
How to Win Friends and Influence People by Dale Carnegie: A Summary and Key Takeaways
Dale Carnegie's How to Win Friends and Influence People is one of the most popular and influential...
a year ago
Dale Carnegie's How to Win Friends and Influence People is one of the most popular and influential self-help books ever written. First published in 1936, it has sold over 50 million copies and been translated into over 30 languages. The book is a practical guide to improving...
Mazdak
Unlocking Tax Savings and Building Wealth for Your Children: A Smart Strategy for Business Owners
As a business owner, you're constantly seeking ways to optimize your operations, reduce costs, and...
a year ago
As a business owner, you're constantly seeking ways to optimize your operations, reduce costs, and maximize profits. But have you considered a strategy that not only benefits your business but also sets your children up for financial success? The concept of hiring your children...
Mazdak
The Dangers of AI "Answers"
From fake presidential pardons to AI-generated movie reviews, artificial intelligence is blurring...
2 weeks ago
From fake presidential pardons to AI-generated movie reviews, artificial intelligence is blurring the lines between fact and fiction.
Calculated Risk
Schedule for Week of December 22, 2024
Happy Holidays and Merry Christmas!
----- Monday, December 23rd -----
8:30 AM: Chicago Fed National...
yesterday
Happy Holidays and Merry Christmas!
----- Monday, December 23rd -----
8:30 AM: Chicago Fed National Activity Index for November. This is a composite index of other data.
----- Tuesday, December 24th -----
8:30 AM: Durable Goods Orders for November. The consensus is for a 0.4%...
Seeking Wisdom
From Linear to Logistic – Sigmoid Curve and Log Loss
Can we predict the likelihood of heart disease from sleep and exercise? This is my fourth post on my...
a year ago
Can we predict the likelihood of heart disease from sleep and exercise? This is my fourth post on my journey to build a toy GPT. I’d recommend checking out my previous posts before diving into this one. Let’s train a model to predict heart disease using sleep and exercise data....
Mazdak
Loonie on the Brink: Can Canada Escape US Monetary Policy?
The Canadian and American economies are deeply intertwined.
a month ago
The Canadian and American economies are deeply intertwined.
Commoncog
What is Power?
Understanding how power works in business is necessary to understanding business in developing...
3 weeks ago
Understanding how power works in business is necessary to understanding business in developing markets. A members-only mini series.
The Rational Walk
My Years with General Motors
General Motors, under the leadership of Alfred P. Sloan, capitalized on the mistakes of Henry Ford...
a year ago
General Motors, under the leadership of Alfred P. Sloan, capitalized on the mistakes of Henry Ford in the 1920s to become the dominant American automaker.
Mazdak
OpenAI's Meltdown: A Fight for the Future of AI
The recent turmoil at OpenAI, sparked by the abrupt firing of CEO Sam Altman, has far-reaching...
a year ago
The recent turmoil at OpenAI, sparked by the abrupt firing of CEO Sam Altman, has far-reaching implications for the future of artificial intelligence (AI). OpenAI, known for its groundbreaking ChatGPT technology, is considered a frontrunner in the AI race, and its fate could...
Mazdak
The AI Invasion: Is humanity on the verge of a digital takeover?
The AI Invasion: Is humanity on the verge of a digital takeover?
a month ago
The AI Invasion: Is humanity on the verge of a digital takeover?
Citation Needed
Issue 66 – Pretensions to relevance
FTX fraudster Sam Bankman-Fried says he wants a do-over just as Celsius fraudster Alex Mashinsky...
3 months ago
FTX fraudster Sam Bankman-Fried says he wants a do-over just as Celsius fraudster Alex Mashinsky goes to trial, and some more ill-received blockchain games suggest “GameFi” has an uncertain future.
Commoncog
Stan Slap on the Art of Building Effective Employee Cultures
Cedric talks to Stan Slap, international consultant to the Fortune 500, on a powerful, coherent...
a month ago
Cedric talks to Stan Slap, international consultant to the Fortune 500, on a powerful, coherent model for shaping employee culture.
Musings on Markets
Breaking up Big Tech: Cui Bono?
In a court filing on October 9, 2024, the US Department of Justice (DOJ) let it be known that it was...
2 months ago
In a court filing on October 9, 2024, the US Department of Justice (DOJ) let it be known that it was considering a break-up of Alphabet, with the addendum that it would also be pushing for the company to share the data it collects across its multiple platforms with competitors....
Farnam Street
The Winner’s Edge
A lot of otherwise talented people are too pessimistic to actually do anything. They are paralyzed...
a year ago
A lot of otherwise talented people are too pessimistic to actually do anything. They are paralyzed by risks that don’t exist and greatly exaggerate them where they do, preventing them from being one of the best. Consider this lightly edited excerpt from a conversation between...
The Diff
What Would it Look Like if The Pod Shop Model Blew Up?
Plus! Economic Blocs; Benefits; Headlines; IP and Finance; Squaring the Global Imbalances Circle
6 days ago
Plus! Economic Blocs; Benefits; Headlines; IP and Finance; Squaring the Global Imbalances Circle
Musings on Markets
A Zomato 2022 Update: Value, Pricing and the Gap
On July 21, 2021, I valued Zomato just ahead of its initial public offering at about ₹41 per share....
over a year ago
On July 21, 2021, I valued Zomato just ahead of its initial public offering at about ₹41 per share. The market clearly had a very different view, as the stock premiered at ₹74 per share and soared into the stratosphere, peaking at ₹169 per share in late 2021. The last few months...
The Diff
That Top-of-Cycle Feeling
Plus! Search; Cost of Capital; Duration; Aggregate Demand; Leaky Restrictions
a week ago
Plus! Search; Cost of Capital; Duration; Aggregate Demand; Leaky Restrictions
FIRE v London
The richest person you know
What’s it like to be in the top 1%? According to the statistics, most of the readers of my blog are...
a year ago
What’s it like to be in the top 1%? According to the statistics, most of the readers of my blog are among the highest earning and/or richest people in the UK. I bet however that not many of you feel that way. Let’s start with income To be in the top 1% of earnings in… Continue...
Mazdak
A Brighter Outlook for Home Buyers in 2024?
The Federal Reserve's recent announcement of potential interest rate cuts in 2024 has sent ripples...
a year ago
The Federal Reserve's recent announcement of potential interest rate cuts in 2024 has sent ripples through the housing market, sparking both excitement and cautious optimism among prospective buyers and existing homeowners alike. While the prospect of lower mortgage rates is...
The Rational Walk
The Digest #197
Interest rates, Passive investing, Ben Graham as a young man, Daniel Kahneman, Ken Langone, Lawrence...
8 months ago
Interest rates, Passive investing, Ben Graham as a young man, Daniel Kahneman, Ken Langone, Lawrence Cunningham, Reed Hastings, Steve Eisman
Mazdak
Move Your Business Abroad: A Step-by-Step Guide for Entrepreneurs
Expanding your business abroad can be a great way to reach new markets, increase revenue, and...
a year ago
Expanding your business abroad can be a great way to reach new markets, increase revenue, and diversify your portfolio. However, it's important to do your research and take the necessary steps to ensure a successful transition. Here are some practical tips for entrepreneurs...
balajis.com
No Cap
Fed-killed banks took $100B+ from BTFP to stay afloat, but who's counting?
a year ago
Fed-killed banks took $100B+ from BTFP to stay afloat, but who's counting?
Mazdak
More Creators Can Now Make Money on YouTube
YouTube Lowers Monetization Requirements for Creators. New Twitter CEO Linda Yaccarino Sets Out...
a year ago
YouTube Lowers Monetization Requirements for Creators. New Twitter CEO Linda Yaccarino Sets Out Vision for the Platform. YouTube Makes It Easier for Small Creators to Earn Money YouTube is lowering the eligibility requirements for creators to make money from their channels....
Mazdak
5 best investments during high interest rates
Interest rates are rising, and that means it's time to rethink your investment strategy. When...
a year ago
Interest rates are rising, and that means it's time to rethink your investment strategy. When interest rates rise, the value of existing bonds declines, and stocks can become more volatile. However, there are still a number of investments that can perform well in a high interest...
Citation Needed
Issue 51 – It's quiet... too quiet
It's been a quiet few weeks in the world of crypto disasters... too quiet.
10 months ago
It's been a quiet few weeks in the world of crypto disasters... too quiet.
The Rational Walk
Berkshire Hathaway’s 2024 Q&A Session
Warren Buffett answered over thirty questions in a five hour marathon session in the first annual...
7 months ago
Warren Buffett answered over thirty questions in a five hour marathon session in the first annual meeting after Charlie Munger's death.
The Rational Walk
The Digest #196
Daniel Kahneman (1934 — 2024), Biglari Holdings, Classical education, Sports gambling, Ackman on...
8 months ago
Daniel Kahneman (1934 — 2024), Biglari Holdings, Classical education, Sports gambling, Ackman on Disney's proxy war, Lessons from Paul Graham, Dunbar's number
The Rational Walk
A Dangerous Interregnum
President Biden's decision to allow Ukraine to fire American missiles deep into Russian territory...
a month ago
President Biden's decision to allow Ukraine to fire American missiles deep into Russian territory risks plunging the world into crisis in the finals months of his administration.
The Rational Walk
Negative Lollapalooza Effects
Sharing ideas can have benefits but there are also psychological risks. This article applies lessons...
a year ago
Sharing ideas can have benefits but there are also psychological risks. This article applies lessons from Charlie Munger's psychology of human misjudgment to investing.
Commoncog
Goodhart's Law Isn't as Useful as You Might Think
Goodhart's Law is useless. It tells you about a phenomenon, but it doesn't tell you how to solve it....
a year ago
Goodhart's Law is useless. It tells you about a phenomenon, but it doesn't tell you how to solve it. We look at how organisations actually prevent Goodhart's Law, and illustrate this with Amazon's Weekly Business Review as an example.
Seeking Wisdom
It’s a treasure trove of health insights!
Use Insulin wisely Life on Earth started simple. For nearly 2 billion years, tiny single-celled...
2 months ago
Use Insulin wisely Life on Earth started simple. For nearly 2 billion years, tiny single-celled organisms dominated. Then, a lucky accident changed everything. One cell swallowed another, and the swallowed cell became mitochondria, the powerhouse of complex cells. This chance...
The Rational Walk
The Digest #171
American Prometheus, Buffett buys more OXY, Share repurchases, Lessons from Todd Combs, The nature...
a year ago
American Prometheus, Buffett buys more OXY, Share repurchases, Lessons from Todd Combs, The nature of risk, Damodaran on markets, Keynes on the Treaty of Versailles, Attia on longevity
FIRE v London
Aug ’23: …
A belated write-up of the month of August. Thinking back a month, two stories pop out for me. One...
a year ago
A belated write-up of the month of August. Thinking back a month, two stories pop out for me. One was the death of Russian mutineer Yevgeny Prigozhin – a larger-than-life modern day warlord, responsible for the ‘little green men’ at the start of the Russian/Ukraine war in 2014,...
The Rational Walk
Two Sides of the Same Coin
Savings and consumption are joined at the hip. The more we consume during our working years, the...
11 months ago
Savings and consumption are joined at the hip. The more we consume during our working years, the longer it will take to achieve financial independence.
Commoncog
Mental Strength in Judo; Mental Strength in Life
Results of a four month accelerated expertise experiment in Judo. Or: "I expected to learn about...
a year ago
Results of a four month accelerated expertise experiment in Judo. Or: "I expected to learn about deliberate practice but instead learnt a ton about my mental shortcomings."
Moneyness
How is the foreign expansion of Canadian banks going?
With the high profile nixing of TD Bank's purchase of First Horizon Bank last month, I thought I'd...
a year ago
With the high profile nixing of TD Bank's purchase of First Horizon Bank last month, I thought I'd take a step back and try to visualize the last few decades of Canadian bank expansion outside of the country.
What I've done is go through the annual reports of the big-5 banks at...
Mazdak
Anthropic & Amazon Partnership
In the world of cutting-edge AI, a power couple has emerged: Anthropic, the ambitious AI startup,...
a month ago
In the world of cutting-edge AI, a power couple has emerged: Anthropic, the ambitious AI startup, and Amazon, the tech giant with cloud dominance.
Mazdak
Elon Musk: All In
He's the richest man in the world, a tech titan, and now...
a month ago
He's the richest man in the world, a tech titan, and now...
Calculated Risk
Sunday Night Futures
Weekend:
Schedule for Week of December 15, 2024
Empire State manufacturing survey for December. The...
6 days ago
Weekend:
Schedule for Week of December 15, 2024
Empire State manufacturing survey for December. The consensus is for a reading of 5.8, down from 31.2.
Pre-Market Data and Bloomberg futures S&P 500 and DOW futures are mostly unchanged (fair value).
WTI futures at $71.12 per...
Citation Needed
New York Times: Crypto's fragile foundations
My article in the New York Times describes the common practice throughout the cryptocurrency...
a year ago
My article in the New York Times describes the common practice throughout the cryptocurrency industry that can lead to death spirals like the one at FTX.
Calculated Risk
3rd Look at Local Housing Markets in November
Today, in the Calculated Risk Real Estate Newsletter: 3rd Look at Local Housing Markets in...
6 days ago
Today, in the Calculated Risk Real Estate Newsletter: 3rd Look at Local Housing Markets in November
A brief excerpt:
The NAR is scheduled to release November Existing Home sales on Thursday, December 19th at 10:00 AM. The consensus is for 3.97 million SAAR, up from 3.96 million...
Citation Needed
Effective obfuscation
Silicon Valley's "effective altruism" and "effective accelerationism" only give a thin philosophical...
a year ago
Silicon Valley's "effective altruism" and "effective accelerationism" only give a thin philosophical veneer to the industry's same old impulses.
Moneyness
There are now two types of PayPal dollars, and one is better than the other
PayPal now offers its customers two types of U.S. dollars. In addition to having the option of...
a year ago
PayPal now offers its customers two types of U.S. dollars. In addition to having the option of opening a traditional PayPal account to maintain a balance of dollars, PayPal customers can now hold something new called PayPal USD, a crypto version of a dollar. Whereas PayPal USD...
The Rational Walk
Claim Checks
Viewing money as "claim checks" that can be exchanged for goods and services is a very useful...
5 months ago
Viewing money as "claim checks" that can be exchanged for goods and services is a very useful concept.
Commoncog
Focus Is Saying No To Good Ideas
Several stories about one of the hardest maxims to put to practice in business.
over a year ago
Several stories about one of the hardest maxims to put to practice in business.
The Rational Walk
The Power of Investment Journals
Writing down the rationale for investment decisions is a prerequisite for success. This articles...
a year ago
Writing down the rationale for investment decisions is a prerequisite for success. This articles explores lessons I learned dating back to 2009.
Mazdak
Big Tech Ad Boom
Tech giants are raking in cash as the digital ad market explodes!
a month ago
Tech giants are raking in cash as the digital ad market explodes!
The Rational Walk
What I’ve Been Reading
This post is a list of books that I read in the second quarter of 2024, including Aeschylus,...
5 months ago
This post is a list of books that I read in the second quarter of 2024, including Aeschylus, Herodotus, the Odyssey, and American Scripture.
Moneyness
Memecoins are the point
Cypherpunks wanted to change the world. We ended up with memecoins.
Our story begins with some very...
a month ago
Cypherpunks wanted to change the world. We ended up with memecoins.
Our story begins with some very smart and idealistic developers, known as cypherpunks, creating a new technology know as a blockchain. Blockchains are databases, but decentralized. Advertised as being...
Mazdak
Unplugging Australia: Kids vs. Social Media
Australia is going offline!
3 weeks ago
Australia is going offline!
Mazdak
Decentralization Debate: Unpacking Bluesky's Architecture
Is Bluesky REALLY decentralized? Join us as we analyze Bluesky's architecture and discuss whether it...
3 weeks ago
Is Bluesky REALLY decentralized? Join us as we analyze Bluesky's architecture and discuss whether it truly lives up to the hype.
Musings on Markets
A Business Upended: Streaming disrupts the Entertainment Business!
It has been an unsettling summer for anyone with a stake in the movie, television and broadcasting...
a year ago
It has been an unsettling summer for anyone with a stake in the movie, television and broadcasting businesses. The strike by screen actors and writers which started in July is now into almost into its third month, with no end in sight, putting at risk the pipeline of movies and...
The Rational Walk
The Digest #175
Pseudonyms on social media, Superinvestor portfolios, Apple Vision Pro, Gates on AI, 40% discount...
a year ago
Pseudonyms on social media, Superinvestor portfolios, Apple Vision Pro, Gates on AI, 40% discount rates, Evolving moats, Jay Gould, Garry Tan, Milton Friedman, Ayn Rand, Steve Ells
Moneyness
Are central banks too reliant on SWIFT for domestic payments?
Central bank settlement systems are the the tectonic plates of the payment system: they are vitally...
a year ago
Central bank settlement systems are the the tectonic plates of the payment system: they are vitally important to our lives, but we never see them in action. All of a nations' electronic payments are ultimately completed, or settled, on these systems. If they stop working, our...
Commoncog
Announcing the Commoncog Case Library Public Beta
We're testing a cognitive flexibility theory-driven learning library, designed to accelerate...
over a year ago
We're testing a cognitive flexibility theory-driven learning library, designed to accelerate business expertise. Find out more.
Bits about Money
Guys what is wrong with ACATS
Ever transferred assets between brokerages? Impressive, terrifying machinations happened in the...
7 months ago
Ever transferred assets between brokerages? Impressive, terrifying machinations happened in the background. No cats were harmed.
Farnam Street
Learning Through Play
Play is an essential way of learning about the world. Doing things we enjoy without a goal in mind...
over a year ago
Play is an essential way of learning about the world. Doing things we enjoy without a goal in mind leads us to find new information, better understand our own capabilities, and find unexpected beauty around us. Arithmetic is one example of an area we can explore through play....
Mazdak
The Shadow Bankers Rise: Private Credit Fuels M&A in a Turbulent Market
While 2023 witnessed a 6% dip in US M&A value, a silent force has emerged as the lifeblood of...
12 months ago
While 2023 witnessed a 6% dip in US M&A value, a silent force has emerged as the lifeblood of deal-making in this uncertain market: private credit. Stepping in where traditional bank financing hesitates, private credit has carved a niche with its nimble agility and diverse tools.
Seeking Wisdom
Modeling Life: Linear Algebra
This is the 4th post in my series summarizing the key takeaways from reading the book Modeling Life....
7 months ago
This is the 4th post in my series summarizing the key takeaways from reading the book Modeling Life. I recommend reading my previous posts first to gain a solid understanding on how to model dynamic systems. This post focuses on how linear algebra is employed in modeling dynamic...
Citation Needed
Substackers Against Nazis
A collective letter to Substack leadership.
a year ago
A collective letter to Substack leadership.
Mazdak
Choosing the Optimal Legal Structure for Your Small Business 🇨🇦
Launching a small business is a thrilling entrepreneurial adventure, but selecting the appropriate...
11 months ago
Launching a small business is a thrilling entrepreneurial adventure, but selecting the appropriate legal framework can feel like traversing a complex maze. This guide sheds light on the merits and drawbacks of the three primary options: sole proprietorship, partnership, and...
Mazdak
The Best Age to Start Taking Social Security: It's Not What You Think
When you reach full retirement age (FRA), you can start taking Social Security benefits. But you may...
a year ago
When you reach full retirement age (FRA), you can start taking Social Security benefits. But you may want to consider taking them sooner, even if it means a smaller monthly check. Here's why: Your benefits will grow by 8% per year for each year you delay taking them, up to age...
Citation Needed
Issue 57 - I take deep breath and I get real high
Changpeng Zhao's sentencing, FOIA requests reveal past FBI investigations into Coinbase, and the SEC...
7 months ago
Changpeng Zhao's sentencing, FOIA requests reveal past FBI investigations into Coinbase, and the SEC is on a Wells notice bender.
Mazdak
Google's Gemini Enters the AI Arena: Ready to Take on OpenAI?
Get ready for a new contender in the world of large language models (LLMs): Google's Gemini! This...
a year ago
Get ready for a new contender in the world of large language models (LLMs): Google's Gemini! This powerful AI is set to shake things up, potentially rivaling big names like OpenAI and Microsoft. What's the Buzz About Gemini? Gemini comes in three flavors:
Mazdak
How to Find Great Stocks That Will Make You Money
The stock market can be a great way to grow your wealth over time. However, it's important to know...
a year ago
The stock market can be a great way to grow your wealth over time. However, it's important to know how to find great stocks that will make you money. In this blog post, I will share five key factors to look for when finding great stocks. Factor 1: Strong Revenue Growth
Musings on Markets
Data Update 2 for 2023: A Rocky Year for Equities!
It is the nature of stocks that you have good years and bad ones, and much as we like to forget...
a year ago
It is the nature of stocks that you have good years and bad ones, and much as we like to forget about the latter during market booms, they recur at regular intervals, if for no other reason than to remind us that risk is not an abstraction, and that stocks don't always win, even...
The Rational Walk
The Digest #191
The dopamine loop, Berkshire Hathaway's annual report recap, Tom Gayner's letter to Markel...
9 months ago
The dopamine loop, Berkshire Hathaway's annual report recap, Tom Gayner's letter to Markel shareholders, Investing lessons from Earnest Shackleton, Google's Gemini AI goes off the rails
Seeking Wisdom
Modeling Life: Equilibrium
This is my 2nd post summarizing the key takeaways I got from reading the book Modeling Life. I...
8 months ago
This is my 2nd post summarizing the key takeaways I got from reading the book Modeling Life. I recommend reading my earlier post first to get a good grounding on the foundations covered in the book. A system can exhibit three different types of behavior: equilibrium, oscillation,...
The Rational Walk
Daily Journal: The Canary in the Coal Mine?
Daily Journal and Berkshire Hathaway have little in common aside from Charlie Munger's influence....
7 months ago
Daily Journal and Berkshire Hathaway have little in common aside from Charlie Munger's influence. Recent development at Daily Journal raise concerns.
Commoncog
The Dangers of Expansion
A recurring pattern that seems to show up again and again in business: expansion is dangerous, and...
4 months ago
A recurring pattern that seems to show up again and again in business: expansion is dangerous, and everyone really only learns this through pain.
The Rational Walk
The Digest #227
Final Issue: Bitcoin at $100K, Buffett and Munger Unscripted, Blue Chip Stamps, Flawed CPI...
2 weeks ago
Final Issue: Bitcoin at $100K, Buffett and Munger Unscripted, Blue Chip Stamps, Flawed CPI Statistics, Ergodicity, The End of Shame, Notre Dame, Online Censorship, Healthcare Costs
The Rational Walk
The Theban Plays
The tragic life of Oedipus is the subject of The Theban Plays by Sophocles. The horrors of its plot...
2 months ago
The tragic life of Oedipus is the subject of The Theban Plays by Sophocles. The horrors of its plot has captivated audiences for nearly 2,500 years.
The Rational Walk
The Digest #192
Unpopular large companies, Dopamine culture, Buffett's cheapest stock, Investing in vertical SaaS,...
9 months ago
Unpopular large companies, Dopamine culture, Buffett's cheapest stock, Investing in vertical SaaS, The bear case for China, Chris Davis, Michael Mauboussin
Commoncog
Businesses as Ecosystem Organisms
What we can learn from seeing businesses as organisms in an ecosystem ... using the particularly odd...
3 months ago
What we can learn from seeing businesses as organisms in an ecosystem ... using the particularly odd example of HEICO being the barnacle to TransDigm’s whale.
The Rational Walk
Dollar General: Value or Value Trap?
I spent Labor Day weekend reading about this beaten down retailer. This article provides some...
a year ago
I spent Labor Day weekend reading about this beaten down retailer. This article provides some initial thoughts about the company as well as the overall retail landscape.
FIRE v London
June ’23: The hottest ever
June saw UK’s former PM Mr Johnson leave parliament. Good riddance. I suspect we haven’t seen or...
a year ago
June saw UK’s former PM Mr Johnson leave parliament. Good riddance. I suspect we haven’t seen or (definitely) read the last of him but having him out of Westminster is at least a bit safer than him inside. Closer to (my Coastal Folly) home, there has been a sad story in...
The Rational Walk
The Digest #168
Charles F. Feeney's philanthropy, Howard Marks makes the case for credit, Spin-offs, Birkenstock's...
a year ago
Charles F. Feeney's philanthropy, Howard Marks makes the case for credit, Spin-offs, Birkenstock's IPO, Costco's clothing, Todd Combs interview, Equifax, and more ...
Mazdak
Cloudflare 2024 Internet Report Analysis
Join us as we break down Cloudflare's groundbreaking report and expose fascinating trends in...
a week ago
Join us as we break down Cloudflare's groundbreaking report and expose fascinating trends in internet traffic, security, and adoption.
Seeking Wisdom
How a Machine Learns – Part 2
I’m truly impressed by how accurately LLMs grasp natural language and consistently provide spot-on...
a year ago
I’m truly impressed by how accurately LLMs grasp natural language and consistently provide spot-on answers. Through these posts, I’ll build a toy GPT from scratch using Python and unpack everything that goes inside the LLMs, including the math it uses. This is my third post on my...
The Rational Walk
Berkshire Hathaway Energy’s Uncertain Future
Warren Buffett's concerns about the regulatory climate for the utility industry has negative...
9 months ago
Warren Buffett's concerns about the regulatory climate for the utility industry has negative implications for PacifiCorp and BHE's other subsidiaries.
Calculated Risk
Realtor.com Reports Active Inventory Up 23.4% YoY
What this means: On a weekly basis, Realtor.com reports the year-over-year change in active...
3 days ago
What this means: On a weekly basis, Realtor.com reports the year-over-year change in active inventory and new listings. On a monthly basis, they report total inventory. For November, Realtor.com reported inventory was up 26.2% YoY, but still down 21.5% compared to the 2017 to...
The Rational Walk
The Digest #170
The Precautionary Principle, GEICO Layoffs, Superlinear Returns, TIPS for Retirement, Rockefeller's...
a year ago
The Precautionary Principle, GEICO Layoffs, Superlinear Returns, TIPS for Retirement, Rockefeller's advice to his son, Impact of GLP-1 agonists, Tesla's IPO, Conference call transcripts, and more ...
Farnam Street
Evaluating Information: Find the Signal in the Noise
We are drowning in information. Most of that information is irrelevant. If only we could sort what...
over a year ago
We are drowning in information. Most of that information is irrelevant. If only we could sort what matters from what doesn’t. The good news is that you can train your brain to evaluate the quality of information. Not only can you quickly determine if someone knows what they are...
The Rational Walk
Berkshire Hathaway Energy
Selected highlights from the 2023 EEI Financial Conference
a year ago
Selected highlights from the 2023 EEI Financial Conference
Moneyness
Inflation as a tax
Last week I explored how Henry VIII resorted to coin debasement as a way to raise revenues in order...
a year ago
Last week I explored how Henry VIII resorted to coin debasement as a way to raise revenues in order to fight his wars. This provided Henry with the financial firepower to annex the city of Boulogne from the French in 1544, albeit at the price of England experiencing one of its...
Citation Needed
Migrating from Substack to self-hosted Ghost: the details
I migrated Citation Needed from Substack to self-hosted Ghost. Here is exactly how I did that.
11 months ago
I migrated Citation Needed from Substack to self-hosted Ghost. Here is exactly how I did that.
Calculated Risk
Weekly Initial Unemployment Claims Increase to 242,000
The DOL reported:
emphasis added
The following graph shows the 4-week moving average of weekly...
a week ago
The DOL reported:
emphasis added
The following graph shows the 4-week moving average of weekly claims since 1971.
Click on graph for larger image.
The dashed line on the graph is the current 4-week average. The four-week average of weekly unemployment claims increased to...
Farnam Street
Tit For Tat
Tit for tat is a strategy which, according to game theory, is the most effective choice for iterated...
over a year ago
Tit for tat is a strategy which, according to game theory, is the most effective choice for iterated games based on mutual cooperation or defection. Both players benefit if they cooperate, but one benefits and the other loses out if only they defect, and both lose out to a lesser...
Mazdak
Understanding Employment Insurance (EI)
Employment Insurance (EI) is a social insurance program in Canada that provides temporary financial...
10 months ago
Employment Insurance (EI) is a social insurance program in Canada that provides temporary financial support to eligible individuals who lose their jobs through no fault of their own. While this is the most commonly understood purpose of EI, the program offers various benefits...
Mazdak
The Psychology of Investing: 5 Critical Traps That Can Destroy Your Wealth
The path to investment success is riddled with psychological pitfalls that can turn promising...
a month ago
The path to investment success is riddled with psychological pitfalls that can turn promising portfolios into cautionary tales.
Musings on Markets
The Siren Song of Sustainability: The Theocratic Trifecta's Third Leg!
You might know, by now, of my views on ESG, which I have described as an empty acronym, born in...
a month ago
You might know, by now, of my views on ESG, which I have described as an empty acronym, born in sanctimony, nurtured in hypocrisy and sold with sophistry. My voyage with ESG began with curiosity in my 2019 exploration of what it purported to measure, turned to cynicism as the...
Moneyness
The long arm of OFAC and its reach into the Ethereum network
Coinbase, the U.S.'s largest crypto exchange, is openly processing Ethereum transactions involving...
a year ago
Coinbase, the U.S.'s largest crypto exchange, is openly processing Ethereum transactions involving Tornado Cash, a piece of blockchain infrastructure that was sanctioned by the U.S. government last year for providing mixing services to North Korea.
Over the last two weeks...
Citation Needed
Issue 53 – Choose rich
Euphoria has risen along with crypto prices, but nothing has changed from the last bubble.
9 months ago
Euphoria has risen along with crypto prices, but nothing has changed from the last bubble.
Commoncog
A Most Unlikely Master of Capital Allocation
If the most unlikely, most un-businesslike person could become a masterful capital allocator late in...
11 months ago
If the most unlikely, most un-businesslike person could become a masterful capital allocator late in her life, then perhaps you could, too.
Moneyness
Do bitcoin ETFs conflict with bitcoin's original ethos?
Some folks are suggesting that a bitcoin ETF is absurd because it doesn't fit with Bitcoin's...
11 months ago
Some folks are suggesting that a bitcoin ETF is absurd because it doesn't fit with Bitcoin's original ethos. On the contrary, I think it's a nice snug fit.
It would be a misunderstanding of bitcoin's history to assume that it was the idealism of cypherpunk-ism that gave birth to...
balajis.com
The Elondrop
Build the political support necessary to free Twitter with the largest airdrop in history.
over a year ago
Build the political support necessary to free Twitter with the largest airdrop in history.
Seeking Wisdom
Embeddings – Part 2
This is the 9th post in my series on building a toy GPT. For better understanding, I recommend...
a year ago
This is the 9th post in my series on building a toy GPT. For better understanding, I recommend reading my earlier posts first. Word embeddings convert words into fixed-length numerical arrays. Each number in these arrays corresponds to a specific characteristic of the word, such...
Moneyness
Will the digital euro be like cash?
The European Union published its proposal for a digital euro late last month, which will be issued...
a year ago
The European Union published its proposal for a digital euro late last month, which will be issued by the European Central Bank (ECB) if it goes ahead. There's plenty to digest in the 62-page document, but the one area I want to focus on in this post is privacy.
Digital euros...
The Rational Walk
The Sad Irons
During the depths of the Great Depression, Lyndon Johnson was determined to electrify the Texas Hill...
a year ago
During the depths of the Great Depression, Lyndon Johnson was determined to electrify the Texas Hill Country. Success was integral to his path to greater power.
balajis.com
Prompts are Tiny Programs
And prompt engineering is a subset of software engineering.
11 months ago
And prompt engineering is a subset of software engineering.
Citation Needed
Caroline Ellison: A woman with agency or a helpless pawn?
Why did the former Alameda Research CEO receive only two years imprisonment for her role in the FTX...
2 months ago
Why did the former Alameda Research CEO receive only two years imprisonment for her role in the FTX collapse?
Mazdak
Popular Business Tips That Are Actually Hurting Your Success
In the age of LinkedIn influencers and business gurus, we're bombarded with seemingly wise advice...
a month ago
In the age of LinkedIn influencers and business gurus, we're bombarded with seemingly wise advice that often does more harm than good.
Moneyness
The strange new world of multifunctional assets
I would never own it, but the cryptocurrency BNB is probably one of the strangest most interesting...
a year ago
I would never own it, but the cryptocurrency BNB is probably one of the strangest most interesting assets I've ever analyzed. No other asset (perhaps ever?) provides its owner with so much functionality.
Is the sort of multi-functionality offered by assets like BNB a feature...
Citation Needed
Issue 54 – Cases continue
Crypto-related litigation is in full swing, as the Terra civil fraud trial has kicked off and two...
8 months ago
Crypto-related litigation is in full swing, as the Terra civil fraud trial has kicked off and two other cases against crypto companies have survived motions to dismiss.
Mazdak
RRSP vs TFSA: Making the Right Choice for Your Financial Future
Registered Retirement Savings Plans (RRSPs) and Tax-Free Savings Accounts (TFSAs) are two powerful...
a month ago
Registered Retirement Savings Plans (RRSPs) and Tax-Free Savings Accounts (TFSAs) are two powerful investment vehicles available to Canadians.
The Rational Walk
The Berkshire Hathaway MBA
Studying Warren Buffett, Charlie Munger, and Berkshire Hathaway's history can provide a level of...
a year ago
Studying Warren Buffett, Charlie Munger, and Berkshire Hathaway's history can provide a level of fluency in business and investing rivaling a costly MBA degree.
Mazdak
Salary vs. Dividends: Picking the Right Paycheck as a Business Owner
Whether it's the joy of self-employment or the burden of payroll decisions, every business owner...
10 months ago
Whether it's the joy of self-employment or the burden of payroll decisions, every business owner faces unique financial considerations. One critical choice arises early on: to pay yourself a salary or take dividends? Understanding the pros and cons of each path empowers you to...
Bits about Money
KYC and AML: beyond the acronyms
Know Your Customer policies at financial institutions have more nuance than you'd expect.
a year ago
Know Your Customer policies at financial institutions have more nuance than you'd expect.
Calculated Risk
Schedule for Week of December 15, 2024
The key economic reports this week are Retail Sales, Housing Starts, Existing Home Sales, the 3rd...
a week ago
The key economic reports this week are Retail Sales, Housing Starts, Existing Home Sales, the 3rd estimate of Q3 GDP, and November Personal income and outlays.
----- Monday, December 16th -----
8:30 AM: The New York Fed Empire State manufacturing survey for December. The...
Musings on Markets
The Difference Makers: Key Person(s) Valuation
Can one person make a difference to the value of a business? Of course, and with small businesses,...
a year ago
Can one person make a difference to the value of a business? Of course, and with small businesses, especially those built around personal services (a doctor or plumber’s practice), it is part of the valuation process, where the key person is valued or at least priced and...
The Rational Walk
The Digest #198
Thoughts on risk, Berkshire recap, Graham's first investment, Marks on debt, Electricity demand, How...
7 months ago
Thoughts on risk, Berkshire recap, Graham's first investment, Marks on debt, Electricity demand, How to spend your days, AI and productivity
Citation Needed
Issue 56 – What are you gonna do, arrest me?
The Binance CEO's sentencing draws near, and prosecutors have been busy chasing down other crypto...
8 months ago
The Binance CEO's sentencing draws near, and prosecutors have been busy chasing down other crypto criminals. Also, lawmakers take another stab at stablecoin regulation.
Citation Needed
Issue 61 – Soft war by the enemy
How will recent Supreme Court decisions affect the crypto world? Also, more absurdity from the...
5 months ago
How will recent Supreme Court decisions affect the crypto world? Also, more absurdity from the crypto lobby, and some new regulatory actions.
Commoncog
The Secret at the Heart of Continuous Improvement
Continuous Improvement sounds simple, even obvious. And yet there's a profound secret at its heart...
8 months ago
Continuous Improvement sounds simple, even obvious. And yet there's a profound secret at its heart that doesn't seem to get talked about.
The Diff
Initiations
Plus! Alternative Data; Size and Momentum; The Full Audience; Same-Day
2 weeks ago
Plus! Alternative Data; Size and Momentum; The Full Audience; Same-Day
Moneyness
Stablecoins – a digital version of Swiss bearer savings books
Before anti-money laundering laws arrived in Switzerland, anyone could walk into a Swiss bank and...
4 months ago
Before anti-money laundering laws arrived in Switzerland, anyone could walk into a Swiss bank and open an account without showing any ID. The bank would then issue you something called a bearer savings book, otherwise known as inhabersparheften or livrets d'épargne au porteur....
Farnam Street
Lessons on Leadership: Michael Abrashoff on Turning the Worst Ship in the Navy into the Best
Michael Abrashoff was in his mid-thirties when he took command of the USS Benfold, a guided missile...
over a year ago
Michael Abrashoff was in his mid-thirties when he took command of the USS Benfold, a guided missile destroyer and one of the worst-performing ships in the navy. Despite her potency, the “dysfunctional ship had a sullen crew that resented being there and could not wait to get out...
The Rational Walk
The Digest #203
American Scripture, Prometheus Bound, Herodotus on wealth, Apple intelligence, NetJets, Value...
6 months ago
American Scripture, Prometheus Bound, Herodotus on wealth, Apple intelligence, NetJets, Value Investor's Club, Nietzsche's world view, Are wrist watches effeminate?, Seinfeld on writing
The Rational Walk
Thucydides
Thucydides is best known for his extensive history of the Peloponnesian War which took place between...
4 months ago
Thucydides is best known for his extensive history of the Peloponnesian War which took place between 431 - 404 BC.
Citation Needed
Wind the clock
A message to those asking “what do I do now?”
a month ago
A message to those asking “what do I do now?”
Bits about Money
The business of check cashing
Check cashing, as a business, is a poorly understood "alternative" financial service.
10 months ago
Check cashing, as a business, is a poorly understood "alternative" financial service.
Farnam Street
Focus to Win
Anyone can say no to bad ideas, but only a focused person can say no to good ideas. Focus is about...
over a year ago
Anyone can say no to bad ideas, but only a focused person can say no to good ideas. Focus is about saying no. When talking about one of the biggest lessons he learned from Steve Jobs, Jonny Ive said it was focus. This sounds really simplistic, but it still shocks me how few...
The Rational Walk
GEICO Prioritizes Profits Over Market Share
Berkshire Hathaway's auto insurer has returned to consistent profitability in 2023 but at the price...
a year ago
Berkshire Hathaway's auto insurer has returned to consistent profitability in 2023 but at the price of ceding market share that will be costly to regain in the future.
Commoncog
Setting Up For The Second Half of 2024
A new set of cases for two concept sequences, and the end of the Data Driven Series.
7 months ago
A new set of cases for two concept sequences, and the end of the Data Driven Series.
The Diff
We Still Have No Idea Whether Passive Investing is a Meaningful Risk
Plus! Complements and Strategy; Privacy, Competition, and Scale; Platforms and Ownership; KYC;...
3 weeks ago
Plus! Complements and Strategy; Privacy, Competition, and Scale; Platforms and Ownership; KYC; Tariff Man
Citation Needed
Issue 65 – World Liberty Fiasco
Even the most pro-Trump crypto faithful think Trump’s new crypto scheme is a terrible idea.
3 months ago
Even the most pro-Trump crypto faithful think Trump’s new crypto scheme is a terrible idea.
Commoncog
Business Ecosystem Change Takes Time
The birth of Sony, and the possibility that private corporations and private individuals can change...
6 months ago
The birth of Sony, and the possibility that private corporations and private individuals can change broader business ecosystems.
Bits about Money
Working title (insurance)
Title insurance is grossly overpriced relative to actual risks involved. Why is that?
5 months ago
Title insurance is grossly overpriced relative to actual risks involved. Why is that?
Moneyness
AML works, even if it intercepts less than 1% of criminal proceeds. Here's how
Critics of anti-money laundering (AML) often point to the fact that just a tiny fraction of 1% of...
a year ago
Critics of anti-money laundering (AML) often point to the fact that just a tiny fraction of 1% of criminal proceeds are seized every year, their point being that AML is not working. Either update our approach to AML, they say, or just throw in the towel and legalize money...
Citation Needed
Big publishers think libraries are the enemy
The recent Second Circuit decision in Hachette v. Internet Archive is only the latest battle in the...
3 months ago
The recent Second Circuit decision in Hachette v. Internet Archive is only the latest battle in the war on libraries and the freedom to read.
Mazdak
Regulating Crypto
Eighteen states are suing the SEC over Biden's crypto crackdown. Is this the beginning of the end...
a month ago
Eighteen states are suing the SEC over Biden's crypto crackdown. Is this the beginning of the end for crypto, or a necessary step towards mainstream adoption?
Commoncog
What Rigorous Process Improvement in Education Looks Like
What an rigorous trial and error looks like when applied to improving disadvantaged student outcomes...
2 months ago
What an rigorous trial and error looks like when applied to improving disadvantaged student outcomes ... and why you should do this in your own organisational contexts.
Mazdak
Can Zuckerberg Challenge Google's Search Empire?
Mark Zuckerberg is making a bold move to challenge Google's long-standing dominance in the search...
a month ago
Mark Zuckerberg is making a bold move to challenge Google's long-standing dominance in the search engine market.
Citation Needed
We can have a different web
Many yearn for the “good old days” of the web. We could have those good old days back — or something...
7 months ago
Many yearn for the “good old days” of the web. We could have those good old days back — or something even better — and if anything, it would be easier now than it ever was.
Mazdak
10 Steps to Transform Your Life
As someone who has built and scaled multiple businesses over decades, I've learned that success...
a month ago
As someone who has built and scaled multiple businesses over decades, I've learned that success isn't about sporadic breakthroughs—it's about consistent, intentional changes in how we think and act.
Commoncog
Dancing Landscapes in Business
Cognitive Flexibility Theory creator Rand Spiro on what complexity theory has to say about the...
over a year ago
Cognitive Flexibility Theory creator Rand Spiro on what complexity theory has to say about the wickedness of business.
The Rational Walk
The Digest #158
Claude Shannon's mighty mouse, Ben Graham's father, Doomberg quits Twitter, FASB segment disclosure...
a year ago
Claude Shannon's mighty mouse, Ben Graham's father, Doomberg quits Twitter, FASB segment disclosure rules, Podcasts on old annual reports, Henry Ford's road trips, Jony Ive, Sal Kahn
Seeking Wisdom
Few thoughts on Learning
I was learning how to program during the mid to late 90s. Finding learning material in a world...
a year ago
I was learning how to program during the mid to late 90s. Finding learning material in a world without the Internet, Google, and YouTube was incredibly challenging. I struggled to understand how pointers in C worked. Yashavant Kanetkar’s Understanding Pointers in C book helped me...
Farnam Street
Reciprocity: Getting What You Give
This article is an excerpt from the bestselling book The Great Mental Models Volume 2: Physics,...
over a year ago
This article is an excerpt from the bestselling book The Great Mental Models Volume 2: Physics, Chemistry and Biology Reciprocity teaches us why win-win relationships are the way to go, why waiters leave candies with the bill, why it’s a good idea to use the least force possible...
Mazdak
Tesla Cybertruck beats a Porsche 911 while towing a 911 🫡👀
a year ago
The Rational Walk
Thomas Jefferson’s Advice to His Nephew
Two letters from Thomas Jefferson to his nephew, Peter Carr, illustrate Jefferson's views on...
7 months ago
Two letters from Thomas Jefferson to his nephew, Peter Carr, illustrate Jefferson's views on education, ethics, religion, and many other subjects.
The Diff
The One-Big-Side-Bet Model of Wealth Creation
Plus! Diff Jobs; Building Japan's Financial Ecosystem; The New Balance of Trade; Where Return on...
2 weeks ago
Plus! Diff Jobs; Building Japan's Financial Ecosystem; The New Balance of Trade; Where Return on Investment Goes; Broken ETFs; Swipe Fees and Accounting
Mazdak
X's Ad Business Faces Its Toughest Challenge Yet
In a major blow to X, formerly Twitter, a number of marquee advertisers have announced that they are...
a year ago
In a major blow to X, formerly Twitter, a number of marquee advertisers have announced that they are suspending ad spending on the platform. This comes in response to owner Elon Musk's endorsement of an antisemitic post, as well as to a report by Media Matters For America that...
Commoncog
The 2023 Commoncog Recap
Everything that we covered in 2023, and what to expect now that Commoncog has a new direction.
11 months ago
Everything that we covered in 2023, and what to expect now that Commoncog has a new direction.
The Rational Walk
Warren Buffett on Inflation — Part 1
This article presents lessons learned regarding investing in bonds based on Warren Buffett's...
a year ago
This article presents lessons learned regarding investing in bonds based on Warren Buffett's commentary in his final partnership letters written in 1969 and 1970.
The Rational Walk
The Digest #166
The media landscape, Dollar General's meltdown, The written word, Damodaran on Instacart, The human...
a year ago
The media landscape, Dollar General's meltdown, The written word, Damodaran on Instacart, The human condition, Herb Kelleher, Merger arbitrage, and more.
Mazdak
Block, TikTok & Beyond
From Block's latest moves to TikTok's impact on the music industry, we explore the trends shaping...
a month ago
From Block's latest moves to TikTok's impact on the music industry, we explore the trends shaping our digital world.
Musings on Markets
For the fun of it: An Open House for my Spring 2025 Classes
I am a teacher at heart, and every year, for more than two decades, I have invited people to join me...
a week ago
I am a teacher at heart, and every year, for more than two decades, I have invited people to join me in the classes that I teach at the Stern School of Business at New York University. Since I teach these classes only in the spring, and the first sessions for each of the classes...
Mazdak
Yelp's Transformation: From Review Revolution to Advertising Efficiency
Yelp, the online review platform that revolutionized local business discovery, has undergone a...
a year ago
Yelp, the online review platform that revolutionized local business discovery, has undergone a remarkable transformation in recent years. Shifting from a sales-driven model to a self-service advertising engine, Yelp has achieved significant efficiency gains and revitalized its...
Bits about Money
Banking in very uncertain times
We may be in the early stages of a banking crisis: why, what we're doing to avoid it, and what we...
a year ago
We may be in the early stages of a banking crisis: why, what we're doing to avoid it, and what we may not get about it.
Mazdak
Meta's AI & Reuters: A New Era of News?
Meta's AI is changing how we consume news. The tech giant has partnered with Reuters, a leading...
a month ago
Meta's AI is changing how we consume news. The tech giant has partnered with Reuters, a leading global news provider, to bring real-time news updates directly to users through Meta's AI chatbot.
Musings on Markets
Data Update 1 for 2024: The data speaks, but what does it say?
In January 1993, I was valuing a retail company, and I found myself wondering what a reasonable...
11 months ago
In January 1993, I was valuing a retail company, and I found myself wondering what a reasonable margin was for a firm operating in the retail business. In pursuit of an answer to that question, I used company-specific data from Value Line, one of the earliest entrants into the...
Mazdak
AI.com to Chat.com: OpenAI's Domain Domination
From AI.com to Chat.com, OpenAI is making big moves in the world of conversational AI. They've...
a month ago
From AI.com to Chat.com, OpenAI is making big moves in the world of conversational AI. They've dropped a huge amount of cash – likely over $15.5 million – to snag the premium domain Chat.com.
Calculated Risk
Industrial Production Decreased 0.1% in November
Earlier from the Fed: Industrial Production and Capacity Utilization
Industrial production (IP)...
5 days ago
Earlier from the Fed: Industrial Production and Capacity Utilization
Industrial production (IP) moved down 0.1 percent in November after declining 0.4 percent in October. In November, manufacturing output rose 0.2 percent, boosted by a 3.5 percent increase in the index for motor...
The Rational Walk
The Odyssey
Homer's epic poem tells the story of how Odysseus struggled to return home after the Trojan War. It...
7 months ago
Homer's epic poem tells the story of how Odysseus struggled to return home after the Trojan War. It is one of the greatest stories in history.
Mazdak
DOJ Breaks Up Google, Elden Ring Sold, and Windows Goes Meta
The DOJ is swinging a massive hammer at Google, potentially forcing them to sell off Chrome - will...
a month ago
The DOJ is swinging a massive hammer at Google, potentially forcing them to sell off Chrome - will the internet ever be the same?
The Rational Walk
The Digest #172
Pilot's Founders vs. Berkshire, I Bonds, Ted Weschler interview transcript, Expanding circles of...
a year ago
Pilot's Founders vs. Berkshire, I Bonds, Ted Weschler interview transcript, Expanding circles of competence, Damodaran on Tesla, Thompson on AI, Charlie Munger, Chris Davis
Mazdak
Fed Signals Shift to Easing: Rate Cuts Likely in 2024, Economy Expected to Remain Solid.
The Federal Reserve is signalling a change of course, and it's music to the ears of businesses,...
a year ago
The Federal Reserve is signalling a change of course, and it's music to the ears of businesses, investors, and everyday Americans. After two years of aggressive rate hikes to combat inflation, the central bank is now laying the groundwork for a shift towards easing
Commoncog
Capital Allocation as an Antidote to Business Luck
The unspoken secret about new company formation is that you need to get lucky. Roll the dice, get a...
a year ago
The unspoken secret about new company formation is that you need to get lucky. Roll the dice, get a business outcome. Capital allocation matters because it allows you more skill, less luck, on the journey to a large outcome.
Mazdak
Sam Altman Returns to OpenAI as CEO
In a stunning turn of events, Sam Altman has been reinstated as CEO of OpenAI, just days after being...
a year ago
In a stunning turn of events, Sam Altman has been reinstated as CEO of OpenAI, just days after being fired by the company's board. The move comes after a whirlwind few days that saw Altman's supporters rally to his side, with many threatening to quit if he was not brought back.
Musings on Markets
Tesla in 2023: A Return to Reality, The Start of the End or Time to Buy?
I am not much of a car person and view cars primarily as a mode of transportation. I drive a 2010...
a year ago
I am not much of a car person and view cars primarily as a mode of transportation. I drive a 2010 Honda Civic, a perfectly serviceable vehicle that is never going to get oohs and ahas from onlookers, but I feel no urge to value Honda. I don't own a Tesla, and have only driven...
Commoncog
The Shape of a Technological Window
Technological Windows is Steve Jobs's conception of the game of consumer technology. We look at how...
over a year ago
Technological Windows is Steve Jobs's conception of the game of consumer technology. We look at how he used it over the course of his career. Note: this is a follow-up to and an update for the Commoncog Case Library Beta.
The Rational Walk
Berkshire Hathaway’s 2023 Results — Overview
This article provides a 30,000 foot overview of Berkshire Hathaway's results for 2023 with a focus...
10 months ago
This article provides a 30,000 foot overview of Berkshire Hathaway's results for 2023 with a focus on the components net operating earnings.
Musings on Markets
Data Update 5 for 2024: Profitability - The End Game for Business?
In my last three posts, I looked at the macro (equity risk premiums, default spreads, risk free...
10 months ago
In my last three posts, I looked at the macro (equity risk premiums, default spreads, risk free rates) and micro (company risk measures) that feed into the expected returns we demand on investments, and argued that these expected returns become hurdle rates for businesses, in the...
Bits about Money
Requiem for a bank loan
A brief retrospective on an attractive product First Republic used to offer, and a wider discourse...
a year ago
A brief retrospective on an attractive product First Republic used to offer, and a wider discourse on the banking crisis.
Mazdak
5 Sneaky Financial Traps Sabotaging Your Middle-Class Dream (and How to Escape Them)
In today's dynamic financial landscape, the middle class faces unique challenges. Building wealth...
11 months ago
In today's dynamic financial landscape, the middle class faces unique challenges. Building wealth amidst rising costs and shifting landscapes requires careful navigation, avoiding insidious traps that can derail your financial goals. This newsletter identifies
Mazdak
ETFs vs. Mutual Funds : The Great Investment Debate
For many investors, both seasoned and new, choosing between Exchange-Traded Funds (ETFs) and mutual...
8 months ago
For many investors, both seasoned and new, choosing between Exchange-Traded Funds (ETFs) and mutual funds can be a head-scratcher. Both offer diversification, professional management options, and access to a variety of asset classes. However, they differ significantly in how they...
Farnam Street
Language: Why We Hear More Than Words
It’s a classic complaint in relationships, especially romantic ones: “She said she was okay with me...
over a year ago
It’s a classic complaint in relationships, especially romantic ones: “She said she was okay with me forgetting her birthday! Then why is she throwing dishes in the kitchen? Are the two things related? I wish I had a translator for my spouse. What is going on?” The answer: Extreme...
Citation Needed
Become a Wikipedian in 30 minutes
What will we do if Wikipedia falls to the type of AI-generated garbage that seems to be...
10 months ago
What will we do if Wikipedia falls to the type of AI-generated garbage that seems to be proliferating on the web? The number one thing you can do is learn to edit, and I will walk you through how to get started in only 30 minutes.
The Rational Walk
The Digest #167
TIPS for Retirement, BYD vs. Tesla, Katalin Karikó's vindication, Teledyne, Helzberg Diamonds,...
a year ago
TIPS for Retirement, BYD vs. Tesla, Katalin Karikó's vindication, Teledyne, Helzberg Diamonds, Interviews of Marc Andreessen and Shane Parrish, David Senra's review of Jimmy Buffett's autobiography
Citation Needed
Issue 55 – Halving a bad time
The bitcoin "halving" looms, and that may not be as good news as coiners hope. Also, Terra committed...
8 months ago
The bitcoin "halving" looms, and that may not be as good news as coiners hope. Also, Terra committed fraud and Uniswap got a Wells notice.
The Rational Walk
Warren Buffett’s Evolving Estate Plan
Warren Buffett has revised his will to leave his remaining assets at the time of his death to a new...
5 months ago
Warren Buffett has revised his will to leave his remaining assets at the time of his death to a new charitable trust run by his children.
Commoncog
Creating New Drills for Deliberate Practice
A lesson from a four month accelerated expertise experiment. Or: why creating new drills for a...
a year ago
A lesson from a four month accelerated expertise experiment. Or: why creating new drills for a deliberate practice training program isn't as difficult as you might think.
Calculated Risk
Q4 GDP Tracking: 2.1% to 3.3% Range
From BofA:
Since our last weekly publication, our 3Q GDP tracking estimate has moved up a tenth to...
a week ago
From BofA:
Since our last weekly publication, our 3Q GDP tracking estimate has moved up a tenth to
3.0% q/q saar. Additionally, our 4Q US GDP tracker was unchanged at 2.1% q/q saar. [Dec 13th estimate]
emphasis added
From Goldman:
We left our Q4 GDP tracking and domestic final...
The Rational Walk
The Digest #207
Claim Checks, Herodotus, Berkshire at record highs, Folly of certainty, Advance Auto Parts, Flawed...
5 months ago
Claim Checks, Herodotus, Berkshire at record highs, Folly of certainty, Advance Auto Parts, Flawed memories, Lost knowledge, Todd Combs, Walter Schloss, Bob Noyce, Nietzsche, Lincoln
The Rational Walk
The Digest #178
Berkshire countersues Pilot's founders, Meta targeting teens, Title Insurance, Moats & capital...
a year ago
Berkshire countersues Pilot's founders, Meta targeting teens, Title Insurance, Moats & capital allocation, CAVA's origin, VISA's history, Business lessons from Tom Murphy
Mazdak
Amazon Glasses: Seeing the Future of Delivery
Amazon is developing smart glasses for their delivery drivers to navigate routes, locate packages,...
a month ago
Amazon is developing smart glasses for their delivery drivers to navigate routes, locate packages, and even take photos of deliveries as proof for customers.
The Diff
Longreads + Open Thread
Shanghai, Wrong, Returns, Nuclear, Employee Performance, Feedback Loops, Buffett
3 weeks ago
Shanghai, Wrong, Returns, Nuclear, Employee Performance, Feedback Loops, Buffett
The Rational Walk
The Trust Deficit
My thoughts on the severe deficit of trust facing the United States on its 248th birthday and the...
5 months ago
My thoughts on the severe deficit of trust facing the United States on its 248th birthday and the urgent need to correct course.
Moneyness
UK's core payments settlement system fails... again. Some thoughts
As they increasingly forsake cash, regular folks are making dozens of digital payments every month....
a year ago
As they increasingly forsake cash, regular folks are making dozens of digital payments every month. What they don't realize is how this growing reliance on digital payments increasingly yokes their commercial lives to the fate of a single piece of infrastructure: their central...
Mazdak
Creating a Data-Driven LinkedIn Strategy: A Step-by-Step Guide
One of the most effective ways to succeed on LinkedIn is to create content with purpose, track its...
2 months ago
One of the most effective ways to succeed on LinkedIn is to create content with purpose, track its performance, and adjust based on data.
Mazdak
How to Build Wealth: 5 Key Principles
Building wealth is a long-term goal that requires time, discipline, and consistency. But it is...
a year ago
Building wealth is a long-term goal that requires time, discipline, and consistency. But it is possible for anyone who is willing to put in the work. Here are 5 key principles to help you build wealth: Live below your means. This is the single most important thing you can do to...
Seeking Wisdom
Stay the course
I spend a couple of weeks every February keeping up with my investments, timing it to coincide with...
9 months ago
I spend a couple of weeks every February keeping up with my investments, timing it to coincide with the release of Buffett’s annual letter to shareholders. I found something interesting while performing this ritual this time. I came across Aswath Damodaran’s website, where he has...
The Rational Walk
The Digest #205
Books I read in Q2, Buffett's estate plan, The magic of compounding, How to read a book, Portfolio...
5 months ago
Books I read in Q2, Buffett's estate plan, The magic of compounding, How to read a book, Portfolio rebalancing, Ben Graham in 1955, Sam Walton, LBJ, Robert Moses, The origins of language
FIRE v London
Compounding, type II
Supposedly Albert Einstein called compounding the 8th wonder of the world. Certainly the wonder of...
a month ago
Supposedly Albert Einstein called compounding the 8th wonder of the world. Certainly the wonder of compound annual growth rates is something I feel quite viscerally, the more so with each month that I track my portfolio. But I’ve been struck recently by a radical improvement in...
The Rational Walk
The Digest #162
Volcker on inflation, Parametric insurance, The futility of guidance, Corporate governance reform,...
a year ago
Volcker on inflation, Parametric insurance, The futility of guidance, Corporate governance reform, Keeping a notebook, Singleton and Teledyne, The pros and cons of cancer screening
balajis.com
The Network State Book
A book by Balaji S. Srinivasan (@balajis) on how to start a new country. Now available for preorder...
over a year ago
A book by Balaji S. Srinivasan (@balajis) on how to start a new country. Now available for preorder on Amazon.
Calculated Risk
FOMC Statement: 25bp Rate Cut
Fed Chair Powell press conference video here or on YouTube here, starting at 2:30 PM ET.
FOMC...
4 days ago
Fed Chair Powell press conference video here or on YouTube here, starting at 2:30 PM ET.
FOMC Statement:
lower the target range for the federal funds rate by 1/4 percentage point to 4-1/4 to 4-1/2 percent. In considering the extent and timing of additional adjustments to the...
The Rational Walk
The Digest #160
Steve Jobs in his own words, Risk free rates, Saving for a home, Buffett's investments in Japan,...
a year ago
Steve Jobs in his own words, Risk free rates, Saving for a home, Buffett's investments in Japan, Flawed memories, Podcast interviews with Rudy Havenstein, Doomberg, Paul Graham, and Guy Spier.
Commoncog
Commoncog is Off for the Chinese New Year
A quick announcement. Happy Year of the Rabbit everyone!
a year ago
A quick announcement. Happy Year of the Rabbit everyone!
Musings on Markets
The Price of Risk: With Equity Risk Premiums, Caveat Emptor!
If you have been reading my posts, you know that I have an obsession with equity risk premiums,...
a year ago
If you have been reading my posts, you know that I have an obsession with equity risk premiums, which I believe lie at the center of almost every substantive debate in markets and investing. As part of that obsession, since September 2008, I have estimated an equity risk premium...
The Rational Walk
The Digest #222
Berkshire Hathaway's Q3 Results, BRK 2X Long Daily Target ETF, Presidential Election Polling, Online...
a month ago
Berkshire Hathaway's Q3 Results, BRK 2X Long Daily Target ETF, Presidential Election Polling, Online Speech, Price Controls, Shakespeare's Caesar, Musk and SpaceX, Micro-Cap Investing
Calculated Risk
Weekly Initial Unemployment Claims Decrease to 220,000
The DOL reported:
seasonally adjusted initial claims was 220,000, a decrease of
22,000 from the...
3 days ago
The DOL reported:
seasonally adjusted initial claims was 220,000, a decrease of
22,000 from the previous week's unrevised level of 242,000. The 4-week moving average was 225,500, an increase of
1,250 from the previous week's unrevised average of 224,250.
emphasis added
The...
The Diff
Infrastructure on top of Infrastructure
Plus! AI as an Interface; AI and Property Rights; Covering an EV Short Position; Heterogeneous...
5 days ago
Plus! AI as an Interface; AI and Property Rights; Covering an EV Short Position; Heterogeneous Consumption Baskets as Subtle Union-Busting; Second-Order Effects
Musings on Markets
Toys for Billionaires: Sports Franchises as Trophy Assets!
I have always loved sports, playing tennis and cricket when I was growing up, before transitioning...
a year ago
I have always loved sports, playing tennis and cricket when I was growing up, before transitioning to fan status, cheering for my favored teams from the sidelines. I also like finance, perhaps not as much as sports, but there are winners and losers in the investment game as well....
The Rational Walk
American Scripture
A review of Pauline Maier's book, "American Scripture", which details the conditions leading up to...
6 months ago
A review of Pauline Maier's book, "American Scripture", which details the conditions leading up to the drafting of the Declaration of Independence.
The Rational Walk
By diverse means we arrive at the same end
Montaigne's Essays: Book 1, Chapter 1
a year ago
Montaigne's Essays: Book 1, Chapter 1
Calculated Risk
The "Home ATM" Mostly Closed in Q3
Today, in the Calculated Risk Real Estate Newsletter: The "Home ATM" Mostly Closed in Q3
A brief...
a week ago
Today, in the Calculated Risk Real Estate Newsletter: The "Home ATM" Mostly Closed in Q3
A brief excerpt:
During the housing bubble, many homeowners borrowed heavily against their perceived home equity - jokingly calling it the “Home ATM” - and this contributed to the subsequent...
The Rational Walk
The Digest #189
Fifteen years, Eisenhower's farewell, A tribute to Charlie Munger, A profile of Wang Chuanfu, Forty...
10 months ago
Fifteen years, Eisenhower's farewell, A tribute to Charlie Munger, A profile of Wang Chuanfu, Forty hours in the Vision Pro, Fairfax Financial, Parks America, Howard Marks, Danny Myer
Bits about Money
The Long Shadow of Checks
A lot of more modern financial infrastructure follows the paths blazed by checks, at least in the...
a year ago
A lot of more modern financial infrastructure follows the paths blazed by checks, at least in the U.S.
Seeking Wisdom
Neural Networks – Part 3
This is the seventh post in my series on making a toy GPT. For better understanding, I recommend...
a year ago
This is the seventh post in my series on making a toy GPT. For better understanding, I recommend reading my earlier posts first. The MNIST dataset is the “hello world” of machine learning, containing images of handwritten digits that are used to train machine learning models. It...
The Rational Walk
American Prometheus
The tragic story of J. Robert Oppenheimer encompasses far more than science and politics. It is a...
a year ago
The tragic story of J. Robert Oppenheimer encompasses far more than science and politics. It is a cautionary tale of human nature that holds timeless lessons.
Commoncog
Process Improvement is Trickier Than You Think
Most companies skimp on process improvement. But the surprising thing is that they do so not because...
over a year ago
Most companies skimp on process improvement. But the surprising thing is that they do so not because they're bad or lazy — but because there are system dynamics that prevent them from doing so. We take a look at what those are.
Full Width 
Shortcuts 
Sign Up 
Log In 
Articles 
Reading List 