Casey Handmer's blog
How to build a lunar mass driver
Casey Handmer May 2026 What? Elon has recently (late 2025, early 2026) been talking about building...
8th May 2026
Casey Handmer May 2026 What? Elon has recently (late 2025, early 2026) been talking about building many terawatts of orbital AI compute and launching some components from Moon factories with a mass driver. This is an old idea, enabled by …
Chris Grossack's...
Monoidal Monoidoidoids
So I was on the nlab the other day, and I saw a fantastic joke:
A 2-category is “just” a monoidal...
21st Aug 2022
So I was on the nlab the other day, and I saw a fantastic joke:
A 2-category is “just” a monoidal monoidoidoid! Here’s a screenshot
in case the nlab page for 2-categories changes someday:
There’s a thing called the Category Theorist’s “Just”, which describes
the joy that many...
Drew Ex Machina
Failure to Launch: The First Moon Race 1958-60
While it has been a few months since I have published a new post on the Drew Ex Machina website,...
2nd Jun 2023
While it has been a few months since I have published a new post on the Drew Ex Machina website, that doesn’t mean that I haven’t […]
Wanderingspace
URANUS FROM THE JAMES WEBB SPACE TELESCOPE
This is not natural light, nothing is from Webb. The infrared image combines data from two filters...
21st Jul 2023
This is not natural light, nothing is from Webb. The infrared image combines data from two filters which are shown in blue and orange,. The planet displays a blue hue in the resulting representative-color image which is similar to the planet’s actual color. But in reality Uranus...
wadertales
Four eggs or five?
There is something pleasing about four wader eggs in a nest. They seem to fit so neatly, with their...
6th Mar 2026
There is something pleasing about four wader eggs in a nest. They seem to fit so neatly, with their pointed ends in the middle, as illiustrated in the Ringed Plover nest alongside. There has been an assumption that this is an optimum arrangement for incubation, with strong...
Quantum Frontiers
Memories of things past
My best friend—who’s held the title of best friend since kindergarten—calls me the keeper of her...
6th Mar 2023
My best friend—who’s held the title of best friend since kindergarten—calls me the keeper of her childhood memories. I recall which toys we played with, the first time I visited her house,1 and which beverages our classmates drank during snack … Continue reading →
ToughSF
Moto-Orion: Mechanized Nuclear Pulse Propulsion
The Orion nuclear pulse propulsion concept has been around for over six decades now. It is powerful...
4th Jan 2021
The Orion nuclear pulse propulsion concept has been around for over six decades now. It is powerful and robust, but lacks the flexibility and features we expect from many more modern designs.
Can we give it those additional capabilities?
That cutaway is one of Matthew Paul...
Eukaryote Writes...
Carl Sagan, nuking the moon, and not nuking the moon
Most of us go about our lives comforted by the thought “I would never drop a nuclear weapon on the...
13th Apr 2024
Most of us go about our lives comforted by the thought “I would never drop a nuclear weapon on the moon.” The truth is that given a lot of power, a nuclear weapon, and a lot of extremely specific circumstances, we too might find ourselves thinking “I should nuke the moon.”
Casey Handmer's blog
Notes on the Fermi Paradox
I recently realized I hadn’t written much in this blog about the Fermi Paradox, though I do write...
3rd Mar 2026
I recently realized I hadn’t written much in this blog about the Fermi Paradox, though I do write about it elsewhere. So here is a quick note. The Fermi Paradox, sometimes paraphrased as “where are they?” is a question about the apparent lack of intelligent alien life in the...
Marine Madness
Book Club: ‘Sea People: The Puzzle of Polynesia’ by Christina Thompson
Who first settled the islands of the remote Pacific? Where did they come from? How did they get...
1st Feb 2022
Who first settled the islands of the remote Pacific? Where did they come from? How did they get there, and how do we know? The answers to these and more questions are all explored in this mesmerizing novel by Pacific historian Christina Thompson. For over a millennium,...
Long Now
Rick Prelinger: Lost Landscapes of San Francisco, 5
### Lives of San Francisco
"You are the soundtrack," Prelinger told the capacity audience at the...
17th Dec 2010
### Lives of San Francisco
"You are the soundtrack," Prelinger told the capacity audience at the Herbst Theater, and they responded to his mostly silent archival films by calling out locations, questions, comments, and jokes.
They saw footage of a 1941 Market Street parade of...
Interaction Magic -...
Units: the forgotten half of the statistic
From the millihelen to the microcentury, via jerk, pirate-ninjas and the Mongolian vowel separator.
2nd Feb 2021
From the millihelen to the microcentury, via jerk, pirate-ninjas and the Mongolian vowel separator.
The Quanta Podcast
Fossil DNA Reveals New Twists in Modern Human Origins
Modern humans and more ancient hominins interbred many times throughout Eurasia and Africa, and the...
13th Aug 2020
Modern humans and more ancient hominins interbred many times throughout Eurasia and Africa, and the genetic flow went both ways.
The post Fossil DNA Reveals New Twists in Modern Human Origins first appeared on Quanta Magazine
Long Now
Lawrence Lessig: How Money Corrupts Congress and a Plan to Stop It
### Public Funding for Public Elections
Larry Lessig gave a rousing performance for the 100th...
18th Jan 2012
### Public Funding for Public Elections
Larry Lessig gave a rousing performance for the 100th Seminar About Long-Term Thinking. In a lawyerly fashion he laid out evidence of a new type of corruption that is disrupting the American republic, and he offered a remedy for that...
Cremieux Recueil
Storks Take Orders From the State
Pronatal benefits and economic booms lead to greater numbers of births
2nd May 2025
Pronatal benefits and economic booms lead to greater numbers of births
ToughSF
Hypervelocity Tether Rockets
Rotating tethers can reach incredible velocities when they are built out of high strength materials....
10th Oct 2022
Rotating tethers can reach incredible velocities when they are built out of high strength materials. With some design features, they can greatly surpass the exhaust velocities of chemical or even nuclear rockets. They can become propulsion systems with impressive performance......
Beautiful Public...
Mapping the Sea Floor
USGS research vessels equipped with cameras, sonar and scanners created a map of 125 square miles of...
29th Dec 2022
USGS research vessels equipped with cameras, sonar and scanners created a map of 125 square miles of the sea floor off Cape Ann, MA.
brr
The Beer Can
Connecting old and new.
18th Mar 2023
Melting Asphalt
Outbreak
Harry Stevens at The Washington Post recently published a very elegant simulation of how a disease...
17th Mar 2020
Harry Stevens at The Washington Post recently published a very elegant simulation of how a disease like COVID-19 spreads. If you haven't already, I highly recommend checking it out. Today I want to follow up with something I've been working…
Read more ›
Quantum Frontiers
Nicole’s guide to interviewing for faculty positions
Snow is haunting weather forecasts, home owners are taking down Christmas lights, stores are...
5th Jan 2026
Snow is haunting weather forecasts, home owners are taking down Christmas lights, stores are discounting exercise equipment, and faculty-hiring committees are winnowing down applications. In-person interviews often take place between January and March but can extend from December...
NeuroLogica Blog
Clickbait and Misinformation
Which is worse – clickbaity headlines for news articles that are factually correct, but may be...
3rd Jun 2024
Which is worse – clickbaity headlines for news articles that are factually correct, but may be playing up a sensational angle, or straight-up misinformation? It depends on what you mean by “worse”. A new study tries to address this information, with some interesting findings....
The Quanta Podcast
The New Laws of Explosive Networks
Researchers are uncovering the hidden laws that reveal how the Internet grows, how viruses spread,...
30th Jul 2015
Researchers are uncovering the hidden laws that reveal how the Internet grows, how viruses spread, and how financial bubbles burst.
The post The New Laws of Explosive Networks first appeared on Quanta Magazine
pcloadletter
Make your PR process resilient to AI slop
One concern I have heard from AI naysayers is that AI slop will make code reviews nearly impossible....
24th Dec 2025
One concern I have heard from AI naysayers is that AI slop will make code reviews nearly impossible. AI churns out so much code, documentation, etc. that it's just impossible for any reviewer to keep up with it... right?
Wrong!
If you have good PR review processes, then reviewing...
The Quanta Podcast
Mongrel Microbe Tests Story of Complex Life
A newly discovered class of microbe could help to resolve one of the biggest and most controversial...
12th Nov 2015
A newly discovered class of microbe could help to resolve one of the biggest and most controversial mysteries in evolution — how simple microbes transformed into the complex cells that produced animals, plants and fungi.
The post Mongrel Microbe Tests Story of Complex...
Out-of-Pocket Blog
2024 Healthcare Predictions, Out-Of-Pocket Style | Out-Of-Pocket
I'm not a fortune teller, I'm a fortune, teller
12th Dec 2023
I'm not a fortune teller, I'm a fortune, teller
Quantum Frontiers
Nicole’s guide to writing research statements
Sunflowers are blooming, stores are trumpeting back-to-school sales, and professors are scrambling...
11th Aug 2025
Sunflowers are blooming, stores are trumpeting back-to-school sales, and professors are scrambling to chart out the courses they planned to develop in July. If you’re applying for an academic job this fall, now is the time to get your application … Continue reading →
Apoorva Srinivasan
an experiment in navigating the knowledge frontier beyond search
Lately, I've been experimenting with interfaces for large language models (LLMs) in my free time....
21st Nov 2023
Lately, I've been experimenting with interfaces for large language models (LLMs) in my free time. The fruit of this labor is something I'm calling "curie," an exploratory and sense-making tool designed to navigate complex topics.
0:00
...
The Roots of...
Links and short notes, 2025-12-19
The links digest is back, baby!
I got so busy writing The Techno-Humanist Manifesto this year that...
20th Dec 2025
The links digest is back, baby!
I got so busy writing The Techno-Humanist Manifesto this year that after May I stopped doing the links digest and my monthly reading updates. I’m bringing them back now (although we’ll see what frequency I can keep up). This one covers the last two...
Long Now
Saul Griffith: Infrastructure and Climate Change
## Green infrastructure
Griffith began with an eyeroll at the first round of responses in the US...
22nd Sep 2015
## Green infrastructure
Griffith began with an eyeroll at the first round of responses in the US to reducing greenhouse gases, a program he calls “peak Al Gore.” Some activities feel virtuous —becoming vegetarian, installing LED lights, avoiding bottled water, reading news...
The Quanta Podcast
The Math of Catastrophe
Around 6,000 years ago, the Sahara was a lush grassland. Then, as if a switch flipped, it began to...
14th Oct 2025
Around 6,000 years ago, the Sahara was a lush grassland. Then, as if a switch flipped, it began to dry out, becoming the desert that we know today. Tipping points are moments in Earth’s history where gradual change suddenly becomes rapid and forms a new equilibrium.
They’re one...
Uncharted...
Should We Eradicate Mosquitoes?
They kill us and bother us, but is that enough to eradicate them, or their role in the environment...
2 weeks ago
They kill us and bother us, but is that enough to eradicate them, or their role in the environment is too important?
Long Now
Michael West: The Prospects of Human Life Extension
### Ever longer life
Our germline cells (eggs and sperm) are already immortal. What if the rest of...
13th Nov 2004
### Ever longer life
Our germline cells (eggs and sperm) are already immortal. What if the rest of the cells of our body could acquire the same ability? Tissue by tissue, one degenerative disease after another, it could gradually happen in the course of one or two human...
The Works in...
Fixing retail with land value capture
How to create beautiful shopping streets everywhere
5th Jun 2024
How to create beautiful shopping streets everywhere
wadertales
Inland feeding by coastal godwits
Species such as Dunlin and Knot are well-served by conservation measures that aim to protect...
10th Nov 2022
Species such as Dunlin and Knot are well-served by conservation measures that aim to protect estuaries but the same is not necessarily true for Black-tailed Godwits. In a 2022 paper in the journal Wader Study, Clément Jourdan and colleagues describe the movements of ten tagged...
The Works in...
Issue 16: I dream of genes
Plus: how humans are outdoing nature's shiniest creations; the history of measuring price rises; and...
3rd Sep 2024
Plus: how humans are outdoing nature's shiniest creations; the history of measuring price rises; and how America's favourite type of coffee got really, really good.
Works in Progress...
There was no great stagnation
We may not have flying cars but we do have incredible information technology. We’re mismeasuring the...
12th Oct 2022
We may not have flying cars but we do have incredible information technology. We’re mismeasuring the huge benefits it is bringing.
Damn Interesting
The Unceasing Cessna Hacienda
Warren “Doc” Bayley was a man of the people. When he and his wife Judy opened their Las Vegas resort...
26th Oct 2021
Warren “Doc” Bayley was a man of the people. When he and his wife Judy opened their Las Vegas resort in 1956, Bayley had no plans to compete with the flashier, corporate casinos at the center of the Strip. Instead, the Hacienda Hotel catered to families, as well as to locals who...
Chris Grossack's...
Building Objects with Category Theory
Typically category theory is useful for showing the uniqueness
of certain objects by checking that...
20th Feb 2023
Typically category theory is useful for showing the uniqueness
of certain objects by checking that they satisfy some
universal property. This makes them unique up to unique isomorphism.
However, category theory can also be used in order to show that objects
exist at all, usually...
Long Now
Sara Seager: Other Earths. Other Life.
## To find living exoplanets
Thanks to recent exoplanet research, Seager began, we now know that...
11th Aug 2015
## To find living exoplanets
Thanks to recent exoplanet research, Seager began, we now know that nearly all of our galaxy’s 300 billion stars are accompanied by planets, and a unexpectedly high number of them are rocky like Earth, and many of those orbit in a “habitable”...
IEEE Spectrum
Saving the Big Bang (Antenna)
The antenna that discovered a cosmic microwave background coming from all directions in...
10th Feb 2023
The antenna that discovered a cosmic microwave background coming from all directions in space—cementing the theory that the universe was created in a big bang—now stares down its own topsy-turvy future. Its owner says the hardware will be preserved, but the fate of the historical...
Quantum Frontiers
Unleashing the Advantage of Quantum AI
As experimental capabilities advance rapidly, the quantum computing community faces a critical...
10th Apr 2026
As experimental capabilities advance rapidly, the quantum computing community faces a critical elephant in the room: What will these quantum machines eventually be useful for? Will they deliver the promised broad societal impact, or will they remain highly specialized devices …...
Conservation...
A rare eagle returns to Colombia’s coffee country
2nd Dec 2025
Quanta Magazine
Physicists Start To Pin Down How Stars Forge Heavy Atoms
The precursors of heavy elements might arise in the plasma underbellies of swollen stars or in...
2nd Jul 2025
The precursors of heavy elements might arise in the plasma underbellies of swollen stars or in smoldering stellar corpses. They definitely exist in East Lansing, Michigan.
The post Physicists Start To Pin Down How Stars Forge Heavy Atoms first appeared on Quanta...
pcloadletter
The ChatGPT wrapper product boom is an uncanny valley hellscape
Here we go again: I'm so tired of crypto web3 LLMs.
I'm positive there are wonderful applications...
20th May 2024
Here we go again: I'm so tired of crypto web3 LLMs.
I'm positive there are wonderful applications for LLMs. The ChatGPT web UI seems great for summarizing information from various online sources (as long as you're willing to verify the things that you learn).
But a lot fo the "AI...
The Quanta Podcast
A Good Memory or a Bad One? One Brain Molecule Decides.
When the brain encodes memories as positive or negative, one molecule determines which way they will...
4th Jan 2023
When the brain encodes memories as positive or negative, one molecule determines which way they will go. Read more at QuantaMagazine.org. Music is “Retro” by Wayne Jones.
Long Now
Stewart Brand: Rethinking Green
### Globalizing Green
Brand built his case for rethinking environmental goals and methods on two...
10th Oct 2009
### Globalizing Green
Brand built his case for rethinking environmental goals and methods on two major changes going on in the world. The one that most people still don't take into consideration is that power is shifting to the developing world, where 5 out of 6 people live,...
Willem Pennings
Home Assistant-compatible air quality sensor
I recently moved and our new home is equipped with a ventilation system that distributes fresh...
13th Dec 2021
I recently moved and our new home is equipped with a ventilation system that distributes fresh (outside) air through the house and recoups heat from the air that is exhausted. There is a problem with this system, though. Sometimes, for example when a neighbour lights their wood...
Chris Grossack's...
Where Do Those Undergraduate Divisibility Problems Come From?
Oftentimes in your “intro to proofs” class or your first “discrete math” class
or something...
16th Jan 2025
Oftentimes in your “intro to proofs” class or your first “discrete math” class
or something similar, you’ll be shown problems of the form “prove that for
$n^6 + n^3 + 2n^2 + 2n$ is a multiple of $6$ for every $n$”… But where do
these problems come from? And have you ever...
The Roots of...
What is progress?
In one sense, the concept of progress is simple, straightforward, and uncontroversial. In another...
9th Mar 2024
In one sense, the concept of progress is simple, straightforward, and uncontroversial. In another sense, it contains an entire worldview.
The most basic meaning of “progress” is simply advancement along a path, or more generally from one state to another that is considered more...
Out-of-Pocket Blog
Time Toxicity - A Real-World Example | Out-Of-Pocket
Being sick is already annoying, now I gotta spend time on the phone???
3rd Jan 2024
Being sick is already annoying, now I gotta spend time on the phone???
Cremieux Recueil
Fast Fact Check: Does Hep B Vaccination Cause Autism?
Obviously not
5th Mar 2026
Beautiful Public...
1,000 Photos of Dolphin Fins
Scars, scratches and wounds abound in these photos as encounters with unknown creatures and boat...
10th Apr 2023
Scars, scratches and wounds abound in these photos as encounters with unknown creatures and boat propellers leave their marks, imprinting a story of close escapes and cheating death.
The Roots of...
Who regulates the regulators?
IRBs
Scott Alexander reviews a book about institutional review boards (IRBs), the panels that review...
4th May 2023
IRBs
Scott Alexander reviews a book about institutional review boards (IRBs), the panels that review the ethics of medical trials: From Oversight to Overkill, by Dr. Simon Whitney. From the title alone, you can see where this is going.
IRBs are supposed to (among other things)...
Probably...
Think Java, but interactive
The online version of Think Java now features interactive widgets that run the code examples in the...
3 weeks ago
The online version of Think Java now features interactive widgets that run the code examples in the browser. For readers, it means you can try out the examples, modify them, and test your code. And for us it means we can publish an interactive version of the book without...
Confessions of a...
Let’s argue against the Shark Cull with science
There’s been a lot in the news recently about the implementation of the Shark Cull (or, as the...
1st Feb 2014
There’s been a lot in the news recently about the implementation of the Shark Cull (or, as the Government put it, the “shark protection measures”) here in Western Australia. Just as I am not a climate scientist, I am not a shark biologist, and cannot claim to be a shark expert....
Long Now
Neal Stephenson: Polostan
Neal Stephenson, visionary speculative fiction author and long-time friend of Long Now, joined us...
14th Nov 2024
Neal Stephenson, visionary speculative fiction author and long-time friend of Long Now, joined us for a conversation with journalist Charles C. Mann on the research behind his new novel _Polostan_ , the dawn of the Atomic Age, and the craft of historical storytelling....
Chris Grossack's...
Externalizing Some Simple Topos Statements
Hey all! It’s been a minute. I’ve been super busy with
the UC strike and honestly I haven’t done...
13th Dec 2022
Hey all! It’s been a minute. I’ve been super busy with
the UC strike and honestly I haven’t done math in any
serious capacity for almost the past month. It’s been a
lot of hard work trying to get fair contracts out of the UC,
but I had a lot of travel plans this December to...
Quanta Magazine
Years After the Early Death of a Math Genius, Her Ideas Gain New Life
A new proof extends the work of the late Maryam Mirzakhani, cementing her legacy as a pioneer of...
3rd Mar 2025
A new proof extends the work of the late Maryam Mirzakhani, cementing her legacy as a pioneer of alien mathematical realms.
The post Years After the Early Death of a Math Genius, Her Ideas Gain New Life first appeared on Quanta Magazine
Works in Progress...
Who cares about plagiarism?
Plagiarism is unforgivable in academia but it’s not plagiarism itself that should trouble us. It’s...
21st Jan 2022
Plagiarism is unforgivable in academia but it’s not plagiarism itself that should trouble us. It’s carelessness and a lack of originality.
Works in Progress...
The beauty of concrete
Why are buildings today simple and austere, while buildings of the past were ornate and elaborately...
17th May 2024
Why are buildings today simple and austere, while buildings of the past were ornate and elaborately ornamented? The answer is not the cost of labor.
Long Now
Eric Ries: Long-Term Stock Exchange
Companies that operate with a long-term mindset tend to outperform their peers over time. But the...
3rd Mar 2020
Companies that operate with a long-term mindset tend to outperform their peers over time. But the pressure to achieve short-term quarterly gains often works against longer-term sustainable growth, and can push even the most visionary company into a short-term mindset.
In 02019,...
Casey Handmer's blog
Direct Current Data Centers
Casey Handmer, Matt Weickert Originally posted at the Terraform Blog. This post explains our current...
30th Jan 2026
Casey Handmer, Matt Weickert Originally posted at the Terraform Blog. This post explains our current views on how humanity will achieve Kardashev Level 1 status by exploiting the full energy resources of an entire planet. More specifically, how pure solar+batteries will power AI...
NeuroLogica Blog
What to Make of Havana Syndrome
I have not written before about Havana Syndrome, mostly because I have not been able to come to any...
1st Apr 2024
I have not written before about Havana Syndrome, mostly because I have not been able to come to any strong conclusions about it. In 2016 there was a cluster of strange neurological symptoms among people working at the US Embassy in Havana, Cuba. They would suddenly experience...
Long Now
Sander van der Leeuw: The Archaeology of Innovation
### History of Innovation
The development of human mental ability can be tracked through the...
19th Nov 2009
### History of Innovation
The development of human mental ability can be tracked through the progressive crafting of stone tools, Van der Leeuw explained. First we learned to shape an edge---a line---then the surface, then the whole volume of the tool, then the sophisticated...
lcamtuf’s thing
How much of HN is AI?
I have a complicated relationship with Hacker News. The site is the most important aggregator of...
12th Mar 2026
I have a complicated relationship with Hacker News. The site is the most important aggregator of geek news and a major source of traffic to this blog. At the same time, it has a fair number of toxic commenters, making it a dependable source of insults hurled in my general...
Casey Handmer's blog
Why do we need a Department of Government Efficiency?
President Trump’s recent sweeping electoral victory is a clear mandate for change. There is some...
2nd Dec 2024
President Trump’s recent sweeping electoral victory is a clear mandate for change. There is some urgency, and Trump has assembled the early stages of a team and coalition that can deliver it. It’s not exactly a mystery what Elon and Vivek plan for The Department of Government...
brr
McMurdo Postal Mail
How to mail things to and from Antarctica!
25th Nov 2022
How to mail things to and from Antarctica!
SubAnima
Why do bees die when they sting you?
Suicide is a truly bizarre evolutionary strategy. Why does it exist?
4th Oct 2021
Suicide is a truly bizarre evolutionary strategy. Why does it exist?
nanoscale views
NAS "State of Science" 2026 address
I watched the webcast of the NAS State of Science address by outgoing NAS president Dr. Marcia...
2nd Jun 2026
I watched the webcast of the NAS State of Science address by outgoing NAS president Dr. Marcia McNutt. (I did not watch the panel discussion afterward, so sorry if I missed critical pieces.) A few thoughts on this:
The intro music was a very classy baroque string quartet. ...
Quanta Magazine
Ninth Dedekind Number Found by Two Independent Groups
The numbers count a variety of seemingly unrelated mathematical structures.
The post...
1st Aug 2023
The numbers count a variety of seemingly unrelated mathematical structures.
The post Ninth Dedekind Number Found by Two Independent Groups first appeared on Quanta Magazine
The Works in...
Notes on Progress: An Englishman in New York
Reflections on the revolution in Manhattan
7th Oct 2022
Reflections on the revolution in Manhattan
The Quanta Podcast
The Infinite Heist - Part 1
In 1874, Georg Cantor published one of the most important papers in math’s 4,000-year history. Some...
3rd Mar 2026
In 1874, Georg Cantor published one of the most important papers in math’s 4,000-year history. Some ideas in it were stolen. On this episode of The Quanta Podcast, the first of a two-parter, host Samir Patel speaks with math editor Jordana Cepelewicz about the hard-fought journey...
Conservation...
Newly protected habitat offers hope for the Siamese crocodile
5th Aug 2026
Long Now
Kishore Mahbubani: Has the West Lost It? Can Asia Save It?
In Kishore Mahbubani’s view, global power is shifting from the West to the Rest—from Europe and...
1st May 2018
In Kishore Mahbubani’s view, global power is shifting from the West to the Rest—from Europe and North America to Asia and Africa. He argues that changes will be required both in the West and the Rest to manage the shift gracefully for long-term stability. The rest of the world...
Quantum Frontiers
Congratulations, class of 2025! Words from a new graduate
Editor’s note (Nicole Yunger Halpern): Jade LeSchack, the Quantum Steampunk Laboratory’s first...
10th Jun 2025
Editor’s note (Nicole Yunger Halpern): Jade LeSchack, the Quantum Steampunk Laboratory’s first undergraduate, received her bachelor’s degree from the University of Maryland this spring. Kermit the Frog presented the valedictory address, but Jade gave the following speech at the...
lcamtuf’s thing
0.9999... ≊ 1
What is infinity, and why it's not trivial to show that 0.9999... is equal to 1.
1st Jun 2025
What is infinity, and why it's not trivial to show that 0.9999... is equal to 1.
Drew Ex Machina
First Pictures: Color View of the Earth & A Tropical Depression from Space – October 5, 1954
While today we are inundated with color images of the Earth, our earliest views from space were...
5th Oct 2024
While today we are inundated with color images of the Earth, our earliest views from space were confined to monochromatic or black and white images (see […]
The Quanta Podcast
Amateur Mathematician Finds Smallest Universal Cover
Through exacting geometric calculations, Philip Gibbs has found the smallest known cover for any...
6th Sep 2019
Through exacting geometric calculations, Philip Gibbs has found the smallest known cover for any possible shape.
The post Amateur Mathematician Finds Smallest Universal Cover first appeared on Quanta Magazine
The Quanta Podcast
To Live Your Best Life, Do Mathematics
The ancient Greeks argued that the best life was filled with beauty, truth, justice, play and love....
2nd Mar 2017
The ancient Greeks argued that the best life was filled with beauty, truth, justice, play and love. The mathematician Francis Su knows just where to find them.
The post To Live Your Best Life, Do Mathematics first appeared on Quanta Magazine
Chris Grossack's...
Analytic Combinatorics -- A Worked Example
Another day, another blog post that starts with
“I was on mse the other day…”. This time, someone...
8th Apr 2025
Another day, another blog post that starts with
“I was on mse the other day…”. This time, someone asked
an interesting question amounting to “how many unordered rooted
ternary trees with $n$
nodes are there, up to isomorphism?”. I’m a sucker for these kinds of
combinatorial...
Yale E360
Suburban Sprawl Puts Western Homes at Risk from Wildfires
Recent fires in Spokane, Washington, and Reno, Nevada, illustrate the risks from suburban sprawl,...
2 weeks ago
Recent fires in Spokane, Washington, and Reno, Nevada, illustrate the risks from suburban sprawl, experts say. In both cities, encroaching flames burned homes built at the edge of wilderness.
Read more on E360 →
Interaction Magic -...
Life beyond the screen
Since early 2020, I've been teaching courses in Interaction Technologies and Prototyping. Switches,...
15th Jul 2021
Since early 2020, I've been teaching courses in Interaction Technologies and Prototyping. Switches, light, gesture, motion, sound, haptics: this is all about exploring life beyond the screen.
Damn Interesting
The Traveler and His Baggage
On 19 May 1943, a news report from Berlin deepened the already dreary gloom that clung to the people...
3rd Jun 2021
On 19 May 1943, a news report from Berlin deepened the already dreary gloom that clung to the people of Nazi-occupied Paris. Propaganda Minister Joseph Goebbels proudly announced to the world that the German capital of Berlin was officially judenfrei–free of all Jews. As this...
Long Now
Ralph Cavanagh & Peter Schwartz: Nuclear Power, Climate Change and the Next 10,000 Years
### Climate change and nuclear prospects
Given the power to decide who would go first-- anti-nuke...
14th Jan 2006
### Climate change and nuclear prospects
Given the power to decide who would go first-- anti-nuke Ralph Cavanagh from Natural Resources Defense Counsel or pro-nuke Peter Schwartz from Global Business Network-- the large audience Friday night voted for Schwartz to make the...
Beautiful Public...
US Government UFO (UAP) Footage
For decades, the public suspected that the US Government was hiding secret intelligence about UFOs —...
10th Feb 2025
For decades, the public suspected that the US Government was hiding secret intelligence about UFOs — (now known as UAPs). Turns out…it kind of was.
IEEE Spectrum
This 1945 TV Console Showed Two Programs at Once
As I try to write this article, my friend and I have six different screens attached to three types...
3rd Jul 2025
As I try to write this article, my friend and I have six different screens attached to three types of devices. We’re working in the same room but on our own projects—separate yet together, a comfortable companionship.
I had never really thought of the proliferation of screens as...
NeuroLogica Blog
Back From Down Under
I am back from an almost three week trip to LA, Sydney and Christchurch. Sorry I did not have time...
6th Aug 2026
I am back from an almost three week trip to LA, Sydney and Christchurch. Sorry I did not have time to keep up with my blog over that period – in which we recorded four live SGU shows, produced three days of conference content, put on two stage shows, and hosted several other...
Drew Ex Machina
NASA’s Explorer 18: The First Interplanetary Monitoring Platform
Among the greatest scientific achievements of the opening years of the Space Age was the...
27th Nov 2023
Among the greatest scientific achievements of the opening years of the Space Age was the characterization of Earth’s magnetic field and the discovery of what became […]
IEEE Spectrum
Smalltalk Blew Steve Jobs’s Mind
Late in 1979, Steve Jobs and other colleagues from Apple visited the Xerox Palo Alto Research Center...
1st Mar 2023
Late in 1979, Steve Jobs and other colleagues from Apple visited the Xerox Palo Alto Research Center (PARC). There they were introduced to the experimental Alto computer and the Smalltalk language and computing environment, developed by Alan Kay’s Learning Research Group....
Eukaryote Writes...
Eukaryote in Asterisk Magazine + New Patreon Per-post setup
Eukaryote elsewhere I have an article in the latest issue of Asterisk Magazine. After you get really...
14th Apr 2023
Eukaryote elsewhere I have an article in the latest issue of Asterisk Magazine. After you get really deep into the weeds of invertebrate sentience and fish welfare and the scale of factory farming, what do you do with that information vis-a-vis what you feel comfortable eating?...
Quanta Magazine
In a ‘Dark Dimension,’ Physicists Search for the Universe’s Missing Matter
An idea derived from string theory suggests that dark matter is hiding in a (relatively) large extra...
1st Feb 2024
An idea derived from string theory suggests that dark matter is hiding in a (relatively) large extra dimension. The theory makes testable predictions that physicists are investigating now.
The post In a ‘Dark Dimension,’ Physicists Search for the Universe’s Missing...
Light from Space
Andromeda: Our Galactic Neighbor
Many things have been said about the Andromeda Galaxy, arguably the most majestic galaxy that...
27th Sep 2024
Many things have been said about the Andromeda Galaxy, arguably the most majestic galaxy that amateur astronomers can image due to it's sheer size in the sky—many times larger than the Moon appears to us, but also many times dimmer.
With the naked eye, even in
NeuroLogica Blog
New Whale Fossil – Possibly Heaviest Animal Ever
The largest and heaviest animal to ever live on the Earth, as far as we know, is the blue whale,...
3rd Aug 2023
The largest and heaviest animal to ever live on the Earth, as far as we know, is the blue whale, which is extant today. The blue whale is larger than any dinosaur, even the giant sauropods. The average weight of a blue whale is 160 tons, with the largest specimen being 190 tons,...
Quantum Frontiers
Let gravity do its work
One day, early this spring, I found myself in a hotel elevator with three other people. The cohort...
13th May 2024
One day, early this spring, I found myself in a hotel elevator with three other people. The cohort consisted of two theoretical physicists, one computer scientist, and what appeared to be a normal person. I pressed the elevator’s 4 button, … Continue reading →
Long Now
Julia Watson: Design by Radical Indigenism
Responding to climate change by building hard infrastructures and favoring high-tech homogenous...
6th Oct 2020
Responding to climate change by building hard infrastructures and favoring high-tech homogenous design, we are ignoring millennia-old knowledge of how to live in symbiosis with nature. Without implementing soft systems that use biodiversity as a building block, designs remain...
Quantum Frontiers
Announcing the quantum-steampunk creative-writing course!
Why not run a quantum-steampunk creative-writing course? Quantum steampunk, as Quantum Frontiers...
19th Sep 2024
Why not run a quantum-steampunk creative-writing course? Quantum steampunk, as Quantum Frontiers regulars know, is the aesthetic and spirit of a growing scientific field. Steampunk is a subgenre of science fiction. In it, futuristic technologies invade Victorian-era settings:...
Casey Handmer's blog
Terraform Talent Development
Originally posted at the Terraform Blog on November 17, 2025. Terraform Industries is the vehicle by...
24th Nov 2025
Originally posted at the Terraform Blog on November 17, 2025. Terraform Industries is the vehicle by which I build the people that build the team I need to build the future I am determined to build. One of the unexpected privileges of founding an ambitious, future-oriented...
The Works in...
Upzoning New Zealand
How a small country started building a lot of homes
1st Feb 2024
How a small country started building a lot of homes
The Quanta Podcast
The Grand Unified Theory of Rogue Waves
Rogue waves — enigmatic giants of the sea — were thought to be caused by two different mechanisms....
5th Nov 2020
Rogue waves — enigmatic giants of the sea — were thought to be caused by two different mechanisms. But a new idea that borrows from the hinterlands of probability theory has the potential to predict them all.
The post The Grand Unified Theory of Rogue Waves first...
Confessions of a...
Predation of juvenile reef fish in coral patches at Ningaloo Reef
The second research article I have decided to discuss is one I had the pleasure to be involved with!...
11th Feb 2013
The second research article I have decided to discuss is one I had the pleasure to be involved with! In fact, it was the first paper I was a co-author on, after linking up with the Department of Environment and Conservation through an ANNiMS internship program. The paper was...
Works in Progress...
The housing theory of everything
Western housing shortages do not just prevent many from ever affording their own home. They also...
14th Sep 2021
Western housing shortages do not just prevent many from ever affording their own home. They also drive inequality, climate change, low productivity growth, obesity, and even falling fertility rates.
Inverted Passion
Notes on doing science and research
I know it’s been awfully quiet here. I’ve not posted for a while. But I’ve been writing prolifically...
23rd Oct 2025
I know it’s been awfully quiet here. I’ve not posted for a while. But I’ve been writing prolifically somewhere else. Earlier this year, I started an AI lab called Lossfunk and that is what has kept me (happily) busy. We have a newsletter there called Lossfunk Letters where I...
lcamtuf’s thing
How much of HN is AI?
TL;DR: As of June 2026, ~50% of daily top stories are about AI or generated by AI.
12th Mar 2026
TL;DR: As of June 2026, ~50% of daily top stories are about AI or generated by AI.
Long Now
Saul Griffith: Climate Change Recalculated
### The Terawatt World
Engineer Griffith said he was going to make the connection between personal...
17th Jan 2009
### The Terawatt World
Engineer Griffith said he was going to make the connection between personal actions and global climate change. To do that he's been analyzing his own life in extreme detail to figure out exactly how much energy he uses and what changes might reduce the...
The Works in...
The San Diego infinite housing glitch
How a bonus ADU program allows 'granny towers' in gardens
2nd Oct 2024
How a bonus ADU program allows 'granny towers' in gardens
Long Now
Melody Jue: Ocean Memory
The ocean is not empty. It is a vast storage facility of memory agents. Ocean bodies use the...
9th Apr 2026
The ocean is not empty. It is a vast storage facility of memory agents. Ocean bodies use the chemical signatures of seawater for memory and intelligence in ways we can barely imagine. In her Talk, Melody Jue said our struggle to understand ocean memory comes from our terrestrial...
Works in Progress...
How one Kiwi tamed inflation
Inflation targeting is now standard in central banking. But it began with an offhand comment and a...
12th Jun 2025
Inflation targeting is now standard in central banking. But it began with an offhand comment and a political gamble in New Zealand – long before economists took it seriously.
Quantum Frontiers
John Preskill receives 2025 Quantum Leadership Award
The 2025 Quantum Leadership Awards were announced at the Quantum World Congress on 18 September...
18th Sep 2025
The 2025 Quantum Leadership Awards were announced at the Quantum World Congress on 18 September 2025. Upon receiving the Academic Pioneer of the Year Award, John Preskill made these remarks. I’m enormously excited and honored to receive this Quantum Leadership … Continue reading...
Beautiful Public...
WWII Japanese Mass Incarceration collections
Haunting photos and documents document a shameful chapter of America’s history—the forced...
18th Mar 2025
Haunting photos and documents document a shameful chapter of America’s history—the forced displacement and incarceration of Japanese Americans during WWII.
The Quanta Podcast
At Tiny Scales, a Giant Burst on Tree of Life
A new technique for finding and characterizing microbes has boosted the number of known bacteria by...
6th Aug 2015
A new technique for finding and characterizing microbes has boosted the number of known bacteria by almost 50 percent, revealing a hidden world all around us.
The post At Tiny Scales, a Giant Burst on Tree of Life first appeared on Quanta Magazine
Probably...
Bayesian Decision Analysis
At PyData Global 2025 I presented a workshop on Bayesian Decision Analysis with PyMC. The video is...
9th Jan 2026
At PyData Global 2025 I presented a workshop on Bayesian Decision Analysis with PyMC. The video is available now. This workshop is based on the first session of the Applied Bayesian Modeling Workshop I teach along with my colleagues at PyMC Labs. If you would like to learn more,...
Chris Grossack's...
An Empty Product of Nonempty Sets
A few days ago I saw a cute question on mse asking about a particularly
non-intuitive failing of...
4th Jun 2025
A few days ago I saw a cute question on mse asking about a particularly
non-intuitive failing of the axiom of choice. I remember when I was an
undergrad talking to a friend of mine about various statements equivalent
to choice, and being particularly hung up on the same...
Works in Progress...
Steam networks
New York’s skyscrapers soar above a century-old steam network that still warms the city. While the...
13th Mar 2025
New York’s skyscrapers soar above a century-old steam network that still warms the city. While the rest of the world moved to hot water, Manhattanites still buy steam by the megapound.
The Roots of...
What I’ve been reading, June 2023
A monthly feature. As usual, recent blog posts and news stories are omitted from this; you can find...
5th Jun 2023
A monthly feature. As usual, recent blog posts and news stories are omitted from this; you can find them in my links digests. In all quotes below, any emphasis in bold was added by me.
Books
Thomas S. Ashton, The Industrial Revolution, 1760–1830 (1948). A classic in the field,...
Works in Progress...
The golden age of vaccine development
The first vaccine was a lucky accident. Now we can design new vaccines in weeks, atom by atom.
7th Jan 2026
The first vaccine was a lucky accident. Now we can design new vaccines in weeks, atom by atom.
The Quanta Podcast
What Made the Moon? New Ideas Try to Rescue a Troubled Theory
Textbooks say that the moon was formed after a Mars-size mass smashed the young Earth. But new...
17th Nov 2017
Textbooks say that the moon was formed after a Mars-size mass smashed the young Earth. But new evidence has cast doubt on that story, leaving researchers to dream up new ways to get a giant rock into orbit.
The post What Made the Moon? New Ideas Try to Rescue a...
Asterisk
The Perplexing Appeal of <i>The Telepathy Tapes</i>
The Telepathy Tapes claims that autistic children have the ability to read minds. Where do their...
6th Nov 2025
The Telepathy Tapes claims that autistic children have the ability to read minds. Where do their claims come from — and why do so many people believe them?
The Quanta Podcast
A Domesticated Dingo? No, but Some Are Getting Less Wild
Near an Australian desert mining camp, wild dingoes are losing their fear of humans. Their genetic...
9th Aug 2018
Near an Australian desert mining camp, wild dingoes are losing their fear of humans. Their genetic and behavioral changes may echo those from the domestication of dogs.
The post A Domesticated Dingo? No, but Some Are Getting Less Wild first appeared on Quanta Magazine
Long Now
Terry Hunt & Carl Lipo: The Statues Walked -- What Really Happened on Easter Island
### Easter Island reconsidered
In the most isolated place on Earth a tiny society built world-class...
18th Jan 2013
### Easter Island reconsidered
In the most isolated place on Earth a tiny society built world-class monuments. Easter Island (Rapa Nui) is 1,000 miles from the nearest Pacific island, 3,000 miles from the nearest continent. It is just six by ten miles in size, with no running...
Melting Asphalt
Social Status II: Cults and Loyalty
So my previous post on social status was recently treated to a review/critique by Scott Alexander...
2nd Nov 2015
So my previous post on social status was recently treated to a review/critique by Scott Alexander over at Slate Star Codex. I expect most of my readers are already big fans of Scott's blog (as am I). But for those…
Read more ›
Works in Progress...
The first non-opioid painkiller
For nearly two centuries, pain relief meant effective but addictive opioids. Scientists have finally...
6th Oct 2025
For nearly two centuries, pain relief meant effective but addictive opioids. Scientists have finally made something better.
Quantum Frontiers
The Book of Mark
Mark Srednicki doesn’t look like a high priest. He’s a professor of physics at the University of...
9th Jul 2023
Mark Srednicki doesn’t look like a high priest. He’s a professor of physics at the University of California, Santa Barbara (UCSB); and you’ll sooner find him in khakis than in sacred vestments. Humor suits his round face better than channeling … Continue reading →
Peder M. Isager
Four one-sided test of significance (FOST). Dear reader, does this make sense?
In this blog post I propose a four one-sided test of significance (FOST) that can be used to test...
24th May 2024
In this blog post I propose a four one-sided test of significance (FOST) that can be used to test whether an effect is smaller than OR larger than OR equivalent to the smallest effect size of interest. I lay out the general setup and interpretation of FOST, and ask readers to...
Long Now
Walter Mischel: The Marshmallow Test: Mastering Self-Control
### Thinking hot and cool
**In the 1960s, Mischel** and colleagues at Stanford launched a series of...
3rd May 2016
### Thinking hot and cool
**In the 1960s, Mischel** and colleagues at Stanford launched a series of delayed-gratification experiments with young children using a method that later came to be known as “the marshmallow test.” A researcher whom the child knew and trusted, after...
Long Now
Priyamvada Natarajan: Solving Dark Matter and Dark Energy
## The darkness of dark matter and dark energy
ALL THAT WE KNOW of the universe we get from...
12th Apr 2016
## The darkness of dark matter and dark energy
ALL THAT WE KNOW of the universe we get from observing photons, Natarajan pointed out. But dark matter, which makes up 90 percent of the total mass in the universe, is called dark because it neither emits nor reflects photons — and...
Beautiful Public...
FAA Aviation Maps
Among all of the visual information published by the U.S. government, there may be no product with a...
29th Jan 2024
Among all of the visual information published by the U.S. government, there may be no product with a higher information density than the Federal Aviation Administration’s aviation maps.
The Quanta Podcast
Eternal Change for No Energy: A Time Crystal Finally Made Real
Like a perpetual motion machine, a time crystal forever cycles between states without consuming...
14th Oct 2021
Like a perpetual motion machine, a time crystal forever cycles between states without consuming energy. Physicists claim to have built this new phase of matter inside a quantum computer.
Eukaryote Writes...
Who invented knitting? The plot thickens
Last time on Eukaryote Writes Blog: You learned about knitting history. You thought you were done...
4th Feb 2023
Last time on Eukaryote Writes Blog: You learned about knitting history. You thought you were done learning about knitting history? You fool. You buffoon. I wanted to double check some things in the last post and found out that the origins of knitting are even weirder than I...
Marine Madness
Which countries eat the most seafood per person?
The top 10 seafood-consuming nations in the world, plus trends among the world’s richest countries....
11th Dec 2021
The top 10 seafood-consuming nations in the world, plus trends among the world’s richest countries. Seafood is a vital food group and form of income for millions of people around the world. The seafood industry has more than quadrupled in the last 50 years and is estimated to be...
Chris Grossack's...
$\mathsf{B}\text{Diff}(\Sigma)$ Classifies $\Sigma$-bundles
I’ve been trying to learn all about topological (quantum) field theories, the
cobordism hypothesis,...
21st Dec 2024
I’ve been trying to learn all about topological (quantum) field theories, the
cobordism hypothesis, and how to use $(\infty,n)$-categories. This is all
in service of some stuff I’m doing with skein algebras (which are part of a
“$3+1$ TQFT” often named after Crane–Yetter, but...
nanoscale views
Energy storage in the internal states of molecules - old and new
A science story first, then a US research ecosystem story later.
When we think about using molecules...
2nd May 2026
A science story first, then a US research ecosystem story later.
When we think about using molecules to store energy, it's usually in the context of food or fuel, so that chemical reactions take place - bonds are broken and remade, and in an exothermic reaction, the products end...
Quantum Frontiers
Quantum computing vs. Grubhub
pon receiving my speaking assignments for the Tucson Festival of Books, I mentally raised my...
3rd Apr 2023
pon receiving my speaking assignments for the Tucson Festival of Books, I mentally raised my eyebrows. I’d be participating in a panel discussion with Mike Evans, the founder of Grubhub? But I hadn’t created an app that’s a household name. I … Continue reading →
Long Now
Stephen Pyne: Fire Slow, Fire Fast, Fire Deep
### Ecological wildfire
“We are uniquely fire creatures,” Pyne began, “on a uniquely fire planet.”...
10th Feb 2016
### Ecological wildfire
“We are uniquely fire creatures,” Pyne began, “on a uniquely fire planet.” Life itself is a form of slow metabolic combustion—which eventually created oxygen and burnable vegetation that allowed fast combustion, ignited by lightning. Humans came along and...
The Quanta Podcast
Mathematician Hurls Structure and Disorder Into Century-Old Problem
A new paper shows how to create longer disordered strings than mathematicians had thought possible,...
3rd Feb 2022
A new paper shows how to create longer disordered strings than mathematicians had thought possible, proving that a well-known recent conjecture is “spectacularly wrong.”
The post Mathematician Hurls Structure and Disorder Into Century-Old Problem first appeared on...
The Roots of...
Event, Feb 29: “Towards a New Philosophy of Progress” in Boston and on Zoom
On Thursday, February 29, I’ll be giving my talk “Towards a New Philosophy of Progress” to the New...
21st Feb 2024
On Thursday, February 29, I’ll be giving my talk “Towards a New Philosophy of Progress” to the New England Legal Foundation, for their Economic Liberty Speaker Series. The talk will be held over breakfast at NELF’s offices in Boston, and will also be livestreamed over Zoom. See...
Conservation...
Countries agreed to protect 30% of the planet. Now what?
6th Sep 2024
The Quanta Podcast
Scant Evidence of Power Laws Found in Real-World Networks
A new study challenges one of the most celebrated and controversial ideas in network science. ...
11th Oct 2018
A new study challenges one of the most celebrated and controversial ideas in network science.
The post Scant Evidence of Power Laws Found in Real-World Networks first appeared on Quanta Magazine
Apoorva Srinivasan
getting started with bayesian inference
In my previous post, we spoke about hypothesis testing from a frequentist perspective. This is the...
27th Jun 2020
In my previous post, we spoke about hypothesis testing from a frequentist perspective. This is the method that is commonly taught in STAT101 classes. But for many decades, some statisticians have argued for another approach to conduct statistical analysis based on bayes...
Long Now
Brian Behlendorf: A Foundation of Trust: Building a Blockchain Future
An Open Source pioneer, [Brian Behlendorf](https://twitter.com/brianbehlendorf) now leads the effort...
7th Jun 2019
An Open Source pioneer, [Brian Behlendorf](https://twitter.com/brianbehlendorf) now leads the effort to build the infrastructure for trust as a service. In the past he helped build the foundations of the Web with [the Apache Foundation](http://www.apache.org/) and brought Open...
Long Now
Bjorn Lomborg: From Feel-Good to High-Yield Good: How to Improve Philanthropy and Aid
## Doing Good...
14th Mar 2017
## Doing Good Better
[](https://media.longnow.org/files/2/lomborghaiti.jpg)
**Lomborg opened with a photo from Haiti** , showing a young girl dressed for school wading through the muck and garbage of a slum, with pigs...
lcamtuf’s thing
Cursed circuits #5: capacitance multiplier
Capacitor vendors don't want you to know this! Save money on capacitors by spending more on other...
5th Jul 2026
Capacitor vendors don't want you to know this! Save money on capacitors by spending more on other components
Quantum Frontiers
A (quantum) complex legacy
Early in the fourth year of my PhD, I received a most John-ish email from John Preskill, my PhD...
30th Jan 2023
Early in the fourth year of my PhD, I received a most John-ish email from John Preskill, my PhD advisor. The title read, “thermodynamics of complexity,” and the message was concise the way that the Amazon River is damp: “Might … Continue reading →
NeuroLogica Blog
The Real Risk of AI
Artificial Intelligence (AI) is unavoidable. It’s now a part of our daily lives as it has been...
7th Jul 2025
Artificial Intelligence (AI) is unavoidable. It’s now a part of our daily lives as it has been steadily infiltrating the technology we use every day, whether you realize it or not. I remain somewhat in the middle in terms of the hype-to-technological-miracle spectrum. I don’t...
Conservation...
It’s about TIME: Conservationist recognized as climate leader
16th Nov 2023
Andrew Fraknoi –...
What’s Coming in the Sky in 2026?
We review what's coming in the sky and in space exploration for 2026
The post What’s Coming in the...
11th Jan 2026
We review what's coming in the sky and in space exploration for 2026
The post What’s Coming in the Sky in 2026? appeared first on Andrew Fraknoi - Astronomy Lectures - Astronomy Education Resources.
Conservation...
On island nation, ‘ancestral bond’ to crocodiles is tested
1st Jun 2026
Probably...
Confidence In the Press
This is the fifth in a series of excerpts from Elements of Data Science, now available from Lulu.com...
4th Jan 2025
This is the fifth in a series of excerpts from Elements of Data Science, now available from Lulu.com and online booksellers. It’s based on Chapter 16, which is part of the political alignment case study. You can read the complete example here, or run the Jupyter notebook on...
Confessions of a...
Shark Bay: a pristine template for marine ecosystems worldwide
Here in Western Australia, we are lucky to be in the global centre of seagrass diversity. As such,...
13th Aug 2013
Here in Western Australia, we are lucky to be in the global centre of seagrass diversity. As such, we have a coastline dominated by many different species of seagrasses – from large, temperate seagrasses like Posidonia australis to small, tropical species like Halodule...
wadertales
Learning from their elders
A 2026 paper in Animal Behaviour examines how quickly juvenile Black-tailed Godwits(right, with...
5th Feb 2026
A 2026 paper in Animal Behaviour examines how quickly juvenile Black-tailed Godwits(right, with juvenile Redshanks) acquire the feeding skills they will need to get them through their first winter. Josh Nightingale followed the same migration route taken by young birds, as they...
Works in Progress...
Reclaiming the roads
Until recently, roads were shared between a messy mix of cyclists, stagecoaches, carts, horses, and...
21st Jul 2022
Until recently, roads were shared between a messy mix of cyclists, stagecoaches, carts, horses, and pedestrians, with no dominant user.
ToughSF
Hypervelocity Macron Accelerators
We
look at the various ways of accelerating micro-scale projectiles up to hypervelocity
(10-10,000...
27th Nov 2019
We
look at the various ways of accelerating micro-scale projectiles up to hypervelocity
(10-10,000 km/s) and their use in space.
Going
small to go fast
Macrons
or macroscopic particles are tiny projectiles that sit on the border between
the complex structures we see under a...
Eukaryote Writes...
Book review: Air-borne by Carl Zimmer
Man, it’s embarrassing to be part of a field of study (biosecurity, in this case) that had such a...
15th Jun 2025
Man, it’s embarrassing to be part of a field of study (biosecurity, in this case) that had such a public moment of unambiguously whiffing it.
Casey Handmer's blog
Powering the Mars base
This post is part of the series on space topics. This post is not the last word on this topic. The...
5th Nov 2024
This post is part of the series on space topics. This post is not the last word on this topic. The usual caveats apply. I’m curious if you have strong opinions on different fuel mixes. A growing Mars base has a prodigious need for power. I’ve previously written two posts on...
Long Now
Philip Tetlock: Why Foxes Are Better Forecasters Than Hedgehogs
### Ignore confident forecasters
"What is it about politics that makes people so dumb?"
From his...
27th Jan 2007
### Ignore confident forecasters
"What is it about politics that makes people so dumb?"
From his perspective as a psychology researcher, Philip Tetlock watched political advisors on the left and the right make bizarre rationalizations about their wrong predictions at the time...
Apoorva Srinivasan
on edward jenner and creativity
One common question that’s on everyone’s minds as we fiercely scrub our hands, pool our resources,...
20th May 2020
One common question that’s on everyone’s minds as we fiercely scrub our hands, pool our resources, conserve our consumption, stock up (but not hoard), invent calculus or write King Lear is: when will this end? Nobody knows what the answer to that question is but we
Works in Progress...
Who’s afraid of artificial flavors?
‘Artificial’ didn’t scare Americans in the 19th century. Why does it scare them now?
8th May 2026
‘Artificial’ didn’t scare Americans in the 19th century. Why does it scare them now?
Long Now
John Rendon: Long-term Policy to Make the War on Terror Short
### Only connect
John Rendon, head of The Rendon Group, is a senior communications consultant to...
15th Jul 2006
### Only connect
John Rendon, head of The Rendon Group, is a senior communications consultant to the White Houses and Departments of Defense. His subject in this talk is how to replace tactical, reactive response to terror with long-term strategic initative.
I think that people...
Drew Ex Machina
Drew Ex Machina 10th Anniversary: Top Ten Posts
I find it difficult to believe but, it was ten years ago today that I posted the first article on my...
27th Mar 2024
I find it difficult to believe but, it was ten years ago today that I posted the first article on my then-new website, Drew Ex Machina. […]
The Works in...
Notes on Progress: A winter's tale
Melting snow can make the season easier
4th May 2023
Melting snow can make the season easier
Out-of-Pocket Blog
Can AI solve the pain of endless hold times? | Out-Of-Pocket
A look at how it works under the hood + what Assort is doing
11th Nov 2025
A look at how it works under the hood + what Assort is doing
Out-of-Pocket Blog
How do we increase competition for hospitals? | Out-Of-Pocket
Otherwise prices will keep going up?
5th Feb 2026
Otherwise prices will keep going up?
brr
South Pole Water Infrastructure
Fresh water from snow, at 70 below!
8th Jun 2024
Fresh water from snow, at 70 below!
Uncharted...
Should You Be Able to Experiment on Your Own Cancer?
A researcher in virology and immunotherapy got bad news: Her cancer was back with a vengeance; the...
26th Sep 2024
A researcher in virology and immunotherapy got bad news: Her cancer was back with a vengeance; the treatments weren’t working. She decided to treat it herself.
Long Now
Steven Pinker: The Decline of Violence
### The Long Peace
“Nothing can be more gentle than man in his primitive state,” declared Rousseau...
9th Oct 2012
### The Long Peace
“Nothing can be more gentle than man in his primitive state,” declared Rousseau in the 18th century. A century earlier, Thomas Hobbes wrote, “In the state of nature the life of man is solitary, poor, nasty, brutish, and short.” The evidence shows that Rousseau...
The Quanta Podcast
Visions of Future Physics
Nima Arkani-Hamed is championing a campaign to build the world’s largest particle collider, even as...
1st Oct 2015
Nima Arkani-Hamed is championing a campaign to build the world’s largest particle collider, even as he pursues a new vision of the laws of nature.
The post Visions of Future Physics first appeared on Quanta Magazine
Eukaryote Writes...
A love letter to civilian OSINT
What is civilian OSINT, and could it be used altruistically?
10th Jul 2020
What is civilian OSINT, and could it be used altruistically?
Eukaryote Writes...
Speciesquest 2026
A multiplayer distributed game where you find as many species in a year as you can.
31st Dec 2025
A multiplayer distributed game where you find as many species in a year as you can.
The Works in...
How Poor Maintenance Loses Wars - 2022, Ukraine Maintains
A new section from Stewart Brand's Maintenance on Books in Progress
2nd Nov 2023
A new section from Stewart Brand's Maintenance on Books in Progress
Long Now
Stefan Kröpelin: Civilization’s Mysterious Desert Cradle
### The Sahara and civilization
“Almost everything breaks in the desert,” Kröpelin began. He showed...
11th Jun 2014
### The Sahara and civilization
“Almost everything breaks in the desert,” Kröpelin began. He showed trucks mired in sand, one vehicle blown up by a land mine, and a Unimog with an impossibly, hopelessly broken axle. (Using the attached backhoe, it hunched its way 50 miles back...
Uncharted...
Peak Oil Is Coming
In early markets, hybrids always prevail because there’s not enough electric infrastructure. As it...
3rd Feb 2026
In early markets, hybrids always prevail because there’s not enough electric infrastructure. As it develops and people can charge their cars more easily, the share of EVs increases.
Long Now
Douglas Coupland: The Extreme Present
### Future now
**“The present and the future** now coexist at the same time,” Coupland began. “It’s...
2nd Nov 2016
### Future now
**“The present and the future** now coexist at the same time,” Coupland began. “It’s why time doesn’t feel like time any more. We’re inside the future.” He wondered if the constant acceleration of acceleration that we experience might lead to some kind of...
Long Now
Jason Scott: The Web In An Eye Blink
Jason Scott is an activist archiver who preserves artifacts of digital culture for the future. Users...
1st Nov 2017
Jason Scott is an activist archiver who preserves artifacts of digital culture for the future. Users today have many ways to create content online, but they often lack the skills, tools or guidance to preserve the media they make. As startups fail, platforms disappear, and...
The Quanta Podcast
To Remember, the Brain Must Actively Forget
Researchers find evidence that neural systems actively remove memories, suggesting that forgetting...
6th Jun 2019
Researchers find evidence that neural systems actively remove memories, suggesting that forgetting may be the default mode of the brain.
The post To Remember, the Brain Must Actively Forget first appeared on Quanta Magazine
NeuroLogica Blog
Using Sound to Modulate the Brain
The technique is called holographic transcranial ultrasound neuromodulation – which sounds like a...
6th Oct 2025
The technique is called holographic transcranial ultrasound neuromodulation – which sounds like a mouthful but just means using multiple sound waves in the ultrasonic frequency to affect brain function. Most people know about ultrasound as an imaging technique, used, for example,...
Tikalon Blog by Dev...
Copper and Green Energy
The United States Department of Energy has updated its list of critically important materials. The...
1st Jul 2024
The United States Department of Energy has updated its list of critically important materials. The current list of 54 materials includes elements that are presently critical to a transition to green energy, such as the rare earth elements important to turbine generators, and...
Drew Ex Machina
Pioneer 3: JPL’s First Moonshot Attempt
With the new push by the United States and other space faring powers to renew the exploration of the...
6th Dec 2022
With the new push by the United States and other space faring powers to renew the exploration of the Moon, miniaturized spacecraft have been made part […]
Asterisk
How Diplomats See the World
Inside the boring-by-design U.S. fact-checking machine.
4th Aug 2026
Inside the boring-by-design U.S. fact-checking machine.
pcloadletter
The Monty Hall Problem, a side-by-side simulation
I saw a cool version of the Monty Hall game here recently: https://monty.donk.systems.
This is...
1st Jan 2026
I saw a cool version of the Monty Hall game here recently: https://monty.donk.systems.
This is really cool! But I had an itch I wanted to scratch: rather than manually test out the probabilities, I wanted to run two games side-by-side: one where a switch happened and one where a...
Quanta Magazine
Evolution: Fast or Slow? Lizards Help Resolve a Paradox.
Why does natural selection appear to happen slowly on long timescales and quickly on short ones? A...
2nd Jan 2024
Why does natural selection appear to happen slowly on long timescales and quickly on short ones? A multigenerational study of four lizard species addresses biology’s “paradox of stasis.”
The post Evolution: Fast or Slow? Lizards Help Resolve a Paradox. first appeared...
Long Now
Jonathan Rose: The Well Tempered City
### Coherent cities
What holds a city together? Rose noted that the earliest cities were built...
21st Sep 2016
### Coherent cities
What holds a city together? Rose noted that the earliest cities were built around a temple and the spirituality it embodied. As the early communities became larger and more diverse and complex, their economic activity intensified. To be effective in trade...
IEEE Spectrum
The Rise and Fall of 3M’s Floppy Disk
A version of this post originally appeared on Tedium, Ernie Smith’s newsletter, which hunts for the...
2nd Apr 2024
A version of this post originally appeared on Tedium, Ernie Smith’s newsletter, which hunts for the end of the long tail.
if you look on 3M’s own website, you will see no mention of this legacy—it’s a firm that sells abrasive materials, adhesive tapes, filters, films, personal...
nanoscale views
EUV lithography - a couple of quick links
Welcome to the new year!
I've written previously (see here, item #3) about the extreme ultraviolet...
2nd Jan 2026
Welcome to the new year!
I've written previously (see here, item #3) about the extreme ultraviolet lithography tools used in modern computer chip fabrication. These machines are incredible, the size of a railway car, and cost hundreds of millions of dollars each. Veritasium...
The Quanta Podcast
A New World’s Extraordinary Orbit Points to Planet Nine
Astronomers argue that there’s an undiscovered giant planet far beyond the orbit of Neptune. A newly...
14th Mar 2019
Astronomers argue that there’s an undiscovered giant planet far beyond the orbit of Neptune. A newly discovered rocky body has added evidence to the circumstantial case for it.
The post A New World’s Extraordinary Orbit Points to Planet Nine first appeared on Quanta...
Long Now
Kevin Kelly: Technium Unbound
## Holos Rising
When Kevin Kelly looked up the definition of “superorganism” on Wikipedia, he found...
13th Nov 2014
## Holos Rising
When Kevin Kelly looked up the definition of “superorganism” on Wikipedia, he found this: “A collection of agents which can act in concert to produce phenomena governed by the collective.” The source cited was Kevin Kelly, in his 01994 book, Out of Control. His...
Explorations of an...
The Gambia, Part 1 of 2
In November I visited The Gambia along with ten travellers from Quest Nature Tours. Why The Gambia,...
19th Dec 2025
In November I visited The Gambia along with ten travellers from Quest Nature Tours. Why The Gambia, you may ask? This tiny country is not well-known to the international community, but it is an attractive ecotourism destination. The Gambia is a stable, English-speaking democracy...
Quantum Frontiers
Astrobiology meets quantum computation?
The origin of life appears to share little with quantum computation, apart from the difficulty of...
23rd Oct 2023
The origin of life appears to share little with quantum computation, apart from the difficulty of achieving it and its potential for clickbait. Yet similar notions of complexity have recently garnered attention in both fields. Each topic’s researchers expect only … Continue...
The Quanta Podcast
The New History of the Milky Way
Over the past two years, astronomers have rewritten the story of our galaxy.
The post...
4th Mar 2021
Over the past two years, astronomers have rewritten the story of our galaxy.
The post The New History of the Milky Way first appeared on Quanta Magazine
Works in Progress...
A look at Britain’s new DARPA
ARIA is the UK’s visionary new scientific funding body. It has £800m and the freedom to make big...
10th Feb 2023
ARIA is the UK’s visionary new scientific funding body. It has £800m and the freedom to make big bold bets on the scientific trajectories it thinks will benefit Britain – and change the future. We interviewed chief executive Ilan Gur and chairman Matt Clifford, to better...
Cremieux Recueil
Fertility Policy For Rich Countries
A brief proposal to fix Social Security and grow the population
1st Apr 2025
A brief proposal to fix Social Security and grow the population
Eukaryote Writes...
Learn to write well BEFORE you have something worth saying
Lessons learned from trip reports and journal articles.
29th Dec 2024
Lessons learned from trip reports and journal articles.
IEEE Spectrum
Lord Kelvin and His Analog Computer
William Thomson, mourning the death of his wife and flush with cash from various patents related to...
2nd Jun 2024
William Thomson, mourning the death of his wife and flush with cash from various patents related to the laying of the first transatlantic telegraph cable, decided to buy a yacht. His schooner, the Lalla Rookh, became Thomson’s summer home and his base for hosting scientific...
Bartosz Ciechanowski
Sound
Invisible and relentless, sound is seemingly just there, traveling through our surroundings to carry...
18th Oct 2022
Invisible and relentless, sound is seemingly just there, traveling through our surroundings to carry beautiful music or annoying noises. In this article I’ll explain what sound is, how it’s created and propagated.
Throughout this presentation you will be hearing different sounds,...
Stephen Wolfram...
Foundations of Biological Evolution: More Results & More Surprises
This is a follow-on to Why Does Biological Evolution Work? A Minimal Model for Biological Evolution...
5th Dec 2024
This is a follow-on to Why Does Biological Evolution Work? A Minimal Model for Biological Evolution and Other Adaptive Processes [May 3, 2024]. Even More from an Extremely Simple Model A few months ago I introduced an extremely simple “adaptive cellular automaton” model that...
The Quanta Podcast
New Map of Meaning in the Brain Changes Ideas About Memory
Researchers have mapped hundreds of semantic categories to the tiny bits of the cortex that...
11th May 2022
Researchers have mapped hundreds of semantic categories to the tiny bits of the cortex that represent them in our thoughts and perceptions. What they discovered might change our view of memory.
The post New Map of Meaning in the Brain Changes Ideas About Memory first...
Peder M. Isager
Introducing Causion: A web app for playing with DAGs
Causion is a free web app for building causal diagrams (DAGs) and then watching them behave—by...
21st Jan 2026
Causion is a free web app for building causal diagrams (DAGs) and then watching them behave—by simulating data and switching from observation to intervention with do(). Try it now:
https://causion.pedermisager.org/ (it runs in your browser)
Long Now
Juan Enriquez: Mapping the Frontier of Knowledge
### Mapping Life
"All life is imperfectly transmitted code," Enriquez began, "and it is...
13th Oct 2007
### Mapping Life
"All life is imperfectly transmitted code," Enriquez began, "and it is promiscuous." Thus discoveries like the one last month of an entire bacterial genome inside the DNA of a fruitfly is exploding the old tree-of-life models of evolution. The emerging map...
The Quanta Podcast
The Brain Has a 'Low-Power Mode' That Blunts Our Senses
Neuroscientists uncovered an energy-saving mode in vision-system neurons that works at the cost of...
12th Oct 2022
Neuroscientists uncovered an energy-saving mode in vision-system neurons that works at the cost of being able to see fine-grained details. Read more at QuantaMagazine.org. Music is “Unanswered Questions” by Kevin MacLeod.
Long Now
Alex Wright: Glut: Mastering Information Though the Ages
### A Series of Information Explosions
As usual, microbes led the way. Bacteria have swarmed in...
18th Aug 2007
### A Series of Information Explosions
As usual, microbes led the way. Bacteria have swarmed in intense networks for 3.5 billion years. Then a hierarchical form emerged with the first nucleated cells that were made up of an enclosed society of formerly independent...
Works in Progress...
Why housing shortages cause homelessness
Why do high-cost cities have more homelessness? It’s not just about rents — it’s also about the...
5th Dec 2024
Why do high-cost cities have more homelessness? It’s not just about rents — it’s also about the rooms friends and family can’t afford to share.
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