More from Long Now
In a remote corner of the driest state in the country, Anne Heggli's team has been keeping watch over some of Earth’s oldest beings. Since 02012, Heggli’s NevCAN network has recorded conditions at the Nevada Bristlecone Preserve every eight minutes. The result is more than 120 million data points and a high-resolution portrait of how a bristlecone pine thrives. Paleoclimatologist Adam Csank showed how bristlecone microcores reveal the droughts and floods these trees survived long before us, a history that fine-tunes models of what's ahead. Artist and philosopher Jonathon Keats went further. “The most accurate clock,” he said, “is a tree.” His monumental artwork Centuries of the Bristlecone keeps bristlecone time, a clock calibrated to the trees' own growth over millennia. Together, Heggli, Keats and Csank made the case for long science: patient, continuous observation that will help us answer future urgent questions. “Data at this resolution,” Csank said, “is like a Rosetta Stone” for understanding nature’s resilience. At fourteen years young, the bristlecone record is just beginning, Heggli said, but it already holds the key to questions like these: How will bristlecones adapt? What happens when the droughts and floods they've weathered for millennia arrive faster and more frequently? “We can't answer the questions if we're not watching,” said Csank. “We are the stewards of this data,” Heggli concluded. “This is why we need long science.”
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 bias. This bias shapes what we try to protect and the technologies we develop. We must, she said, “deterritorialize the sensorium.” For example, the vertical depths of the Pacific carry thermal signatures of ancient ice ages. Arctic glaciers are laced with matrices of microbes retaining genes from before the Great Oxidation Event. Whale songs are also memory agents, passed down through generations, preserving the cultural histories of the planet's largest creatures. Corals hold memory, too. Those exposed earlier to changing ocean pH are more resilient to acidification. Meanwhile, human cultural memory is in danger of disappearing alongside these ecosystems. Jue pointed to Indigenous and traditional environmental knowledge at risk, like the Ama divers’ fishing tradition, as abalone populations drop. To better translate the ocean sensorium, Jue worked with interdisciplinary artists, musicians, divers, and researchers to develop soundscapes that help us “smell” with our ears, remapping chemosensation through synesthesia. Don’t miss the moment in the Talk where she plays two original music pieces that use the density and flow of sound to mimic chemical gradients of seawater. “The ocean teaches us humility,” Jue concluded. “It makes us confront our preconceptions about the planet and sensation.”
What if the solutions to humanity’s greatest challenges — on Earth and beyond — have already been invented by nature? In this forward-looking talk, evolutionary biologist and astrobiologist Dr. Lynn Rothschild explores how life’s patterns, materials, and mechanisms, refined over billions of years, can serve as a blueprint for building better futures on Earth and other planets. Drawing on insights from deep time, Dr. Rothschild will open the doors to “nature’s hardware store” — a vast, largely untapped reservoir of biological strategies available to scientists, engineers, and innovators. From self-healing materials and bio-inspired architecture to regenerative systems for space exploration, she reveals how biology is shaping the frontiers of technology and inspiring bold, surprisingly practical solutions to complex problems. Grounded in astrobiology and evolutionary insight, this talk invites us to rethink innovation through the lens of life itself and to explore what’s possible when we tap into nature’s storehouse of intelligence to solve the challenges of tomorrow. Lynn J. Rothschild is a research scientist at NASA Ames and Adjunct Professor at Brown University and Stanford University working in astrobiology, evolutionary biology and synthetic biology. Rothschild's work focuses on the origin and evolution of life on Earth and in space, and in pioneering the use of synthetic biology to enable space exploration. From 2011 through 2019 Rothschild served as the faculty advisor of the award-winning Stanford-Brown iGEM (international Genetically Engineered Machine Competition) team, exploring innovative technologies such as biomining, mycotecture, BioWires, making a biodegradable UAS (drone) and an astropharmacy. Rothschild is a past-president of the Society of Protozoologists, fellow of the Linnean Society of London, The California Academy of Sciences and the Explorer’s Club and lectures and speaks about her work widely.
Blaise Agüera y Arcas’s talk took us on a journey through What is Intelligence?, his groundbreaking new work connecting the evolutionary dots between life, computation, and symbiogenesis. He explores how, in our symbiotic world, things combine to make larger things all the time. We might think of humanity in terms of the individual — but we're already part of everything we're creating, which is in turn co-creating us. In the story of technology and humanity, are we distinct from the technologies that we make? Agüera y Arcas' cuts through the essentialist dogma with a functionalist view: Biological computing — computation through DNA, RNA, and proteins — is not a strange outcropping of life but its very nature. Blaise Agüera y Arcas is a VP and Fellow at Google, where he is the CTO of Technology & Society and founder of Paradigms of Intelligence (Pi). Pi is an organization working on basic research in AI and related fields, especially the foundations of neural computing, active inference, sociality, evolution, and artificial life. During his tenure at Google, Blaise has innovated on-device machine learning for Android and Pixel; invented Federated Learning, an approach to decentralized model training that avoids sharing private data; and founded the Artists + Machine Intelligence program.
What if AI is not here actually to replace us, but to remind us who we actually are? That was the question at the heart of Kim Carson’s Long Now Talk. In _Inspired by Intelligence: Purpose and Creativity in the AI Era_, Carson challenged us to avoid the easy narratives of tech-driven utopia and dystopia, charting a course through those two extremes that made the case for AI not as a way to make humans unnecessary but to emphasize our most important creative capacities. In her talk, Carson drew on her experience working in AI at organizations like IBM, where she helped lead Watson Education, which helped connect educators in underserved communities to AI technology, in the name of facing down some of the wickedest problems in society. But she also drew on her own more personal engagement with AI, discussing at length the nuances of how she uses personalized versions of generative pre-trained transformers as collaborators and enablers for creativity. For Carson, AI is a sort of tool for thought — a mirror that we can use to re-inspire ourselves towards greater creativity. Accompanied by video art made using the SORA text-to-video model by Charles Lindsay, she made the case that AI could be used not just for automating labor but also for reclaiming human agency. That means using these new technological modes as enablers for human thought and action, while recognizing their gaps, too — the questions about ourselves that only we can answer, no matter how sophisticated our technology becomes. Throughout her talk, Carson expounded upon the power of vulnerability. The ability to use AI tools to help us reconnect with ourselves, to jar us into seeing our own identities and creative capacities in new lights, is one that will fundamentally help us change our world. In Carson’s view, vulnerability and creativity are the necessary precursors to any sort of technological innovation. As she ended her remarks, Kim made one final note on how we can make a better world collaboratively and creatively: our society does not need “more optimization, it needs more imagination.”
More in science
It is an interesting time in human history for our understanding of life in the universe. We have the technology and basic knowledge to search for the signs of life on other planets, but we have not yet detected any. Confirmation of the high probability of life anywhere other than Earth would be an incredible scientific discovery, and it’s exciting to think it may happen in our lifetime. We now have multiple high-tech telescopes on and near Earth, so we are more capable than we have ever been before. But where to look? We only have one example of life in the universe and so it makes sense to use that as a template. For this reason astronomers have been focusing on Earth-like planets around sun-like stars orbiting in the habitable zone. The Earth is certainly habitable, as evidenced by the fact that it is teeming with life. But is it optimally habitable? Is looking for Earth twins the best place to look for alien life. Astrobiologists are asking this question, and developing a profile for so-called superhabitable worlds – those with optimal features for not just hosting life, but complex and potentially intelligent life. I have mentioned in previous posts that orange stars (K-dwarfs) are likely the sweet spot for life. As stars get smaller and redder, they also live longer. We have a yellow star (by classification, even though the light it produces is white), which has a stable period of about 5 billion years. If life on Earth is typical, then this is just long enough to evolve intelligent life. Red dwarfs (M-dwarfs) live much longer, 100 billion to trillions of years. There are also a lot of them in the universe. But the light they produce is not ideal for photosynthesis, and they are very unstable, especially in their early lives. Also, the habitable zone is close enough to result in tidal locking. There is still the possibility of life on some of these worlds, but this is certainly not the ideal place to look. Orange stars or K-dwarfs seem to be ideal. They can survive for tens of billions of years, have a good habitable zone that would not necessarily result in tidal locking, and their light seems to work just fine for photosynthesis. There are also more of them out there than yellow stars. What about the planet itself? It has to be large enough that its gravity can hold onto volatiles. It should have a magnetic field to protect its atmosphere from solar wind. Too big, however, and you start to get into sub-Neptune territory, where the atmosphere is too thick and includes hydrogen and helium. Some astronomers argue that the ideal size would be a little more massive than Earth. Increased mass would have several effects. It would mean the planet would take longer to cool, which means more time with geological activity and more time with a molten core capable of creating a planet-wide magnetic field. It would also mean that the increased gravity would smooth out the surface more – with shorter mountains and shallowing trenches in the sea. This would create a larger portion of the planet that would have shallow seas, which are ideal locations for life. The picture of a superhabitable planet is starting to emerge – a super-Earth orbiting a K-dwarf orange star in its habitable zone. Of course, this only means it is a candidate for life. Venus also sits in our own sun’s habitable zone, as is about the same size as Earth, but it’s atmosphere is too thick and too toxic for life. Astronomers can find candidate superhabitable planets, but then we would need to examine its atmosphere to see if it is actually good for life and further may contain life. We do have some top candidates, however. KOI 5715.01: Located roughly 3,000 light-years away, this is often considered a top candidate. It orbits an orange dwarf star, is roughly 5.5 billion years old (older than our Sun), and could have a ideal surface temperature if it has enough greenhouse gases to trap heat. Kepler-1126b (and Kepler-69c): These are confirmed exoplanets located over 2,700 light-years away. They orbit older, stable stars and sit comfortably within their systems’ habitable zones. KOI 5554.01: Another Kepler object of interest (700 light years away) that stands out to researchers because its estimated age and stellar environment match the theoretical profile for a superhabitable world. There is one big problem with all of these candidates – they are too far away to effectively examine their atmospheres with current technology, which is only effective out to about 150 light years. There are about 4,500 K-dwarfs within that distance. They have all been broadly surveyed for exoplanets but only about half deeply scrutinized. There are about 450 confirmed exoplanets around these stars. Of those about 300 are Earth-like or superEarths, and of those about 10% are in the habitable zone – about 30 worlds. These are the highest priority exoplanets for atmospheric examination. Also – the smaller Earth-like planets are not well surveyed as the techniques used tend to favor larger worlds. The bottom line is that there is the potential for many more exoplanets to be discovered around nearby K-dwarfs, and some of those may be superhabitable worlds. Those are the most likely candidate on which to find high probability biosignatures. Another caveat however – the further a planet is from its parent star, the fainter the light filtering through its atmosphere. So, astronomers are priorities rocky worlds around M-dwarfs because it is easier to examine their atmosphere, even though they are not in the sweetest spot for life. Hopefully, as techniques and the technology evolve, we will move on to the K-dwarf superhabitable candidates. This is all happening now. As I said – exciting times. We would hear any day about biosignatures in the atmospheres of candidate exoplanets. But – I will get more excited when we move on from the M-dwarf worlds to examining the far better candidates around K-dwarfs. This will likely happen around 2030 with the next generation of telescopes. So stay tuned. The post More on Superhabitable Worlds first appeared on NeuroLogica Blog.
Researchers created a dataset of photos of thousands of paper-thin slices of a male and female cadaver to create one of the most detailed datasets about the human body.
In a remote corner of the driest state in the country, Anne Heggli's team has been keeping watch over some of Earth’s oldest beings. Since 02012, Heggli’s NevCAN network has recorded conditions at the Nevada Bristlecone Preserve every eight minutes. The result is more than 120 million data points and a high-resolution portrait of how a bristlecone pine thrives. Paleoclimatologist Adam Csank showed how bristlecone microcores reveal the droughts and floods these trees survived long before us, a history that fine-tunes models of what's ahead. Artist and philosopher Jonathon Keats went further. “The most accurate clock,” he said, “is a tree.” His monumental artwork Centuries of the Bristlecone keeps bristlecone time, a clock calibrated to the trees' own growth over millennia. Together, Heggli, Keats and Csank made the case for long science: patient, continuous observation that will help us answer future urgent questions. “Data at this resolution,” Csank said, “is like a Rosetta Stone” for understanding nature’s resilience. At fourteen years young, the bristlecone record is just beginning, Heggli said, but it already holds the key to questions like these: How will bristlecones adapt? What happens when the droughts and floods they've weathered for millennia arrive faster and more frequently? “We can't answer the questions if we're not watching,” said Csank. “We are the stewards of this data,” Heggli concluded. “This is why we need long science.”
Prende y se apaga sola, sale después de hora. CHARLY GARCÍA La máquina de ser feliz I’ve learned to tolerate them, and sometimes even like them, but Zoom meetings are weird. Even in familiar contexts: I have weekly check-ins with … Continue reading →
the economics are especially interesting