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Making Chicken Transparent Using Dorito DustModifying the optical properties of biological tissues with tartrazine
CasualPhysicsEnjoyer walks through a Nature paper on making live tissue optically transparent with absorbing molecules such as tartrazine (the yellow dye in Doritos), then recreates and explains the physics at home: refractive-index matching, complex permittivity, and why a yellow dye can open a window into chicken meat.
15 min · 3,512 words
I Know Why the Mathematicians WeepOn technological grief
Derek Thompson talks with Cornell mathematician Steven Strogatz about why OpenAI's flood of AI-generated proofs has left mathematicians grieving, arguing that science is both a craft and a conversation between minds, and that machines producing knowledge without human understanding threaten the social half of science that people will need to protect.
8 min · 1,932 words
Henrik Karlsson reflects on why music moves us so deeply, from a Sámi joik heard on the car radio to how a soundtrack can turn a horror scene funny, and what that says about meaning, emotion and the narrow range of commercial music.
14 min · 3,117 words
“Men with Queer Nerves”: The Jumping Frenchmen of Maine
Ross Bullen writes for The Public Domain Review about the French-Canadian lumberjacks around Maine's Moosehead Lake who, at the slightest stimulus, would jump, strike out or mimic languages they could not speak, and about neurologist George M. Beard, who first wrote about them in an 1878 essay and linked their behavior to religious frenzy and neurasthenia.
16 min · 3,760 words
E. coli chemotaxis: the baffling intelligence of a single cell
James Somers tells the story of how a single E. coli cell forages for nutrients through chemotaxis: its run-and-tumble swimming, the receptor and signaling proteins that give it something like smell, drive and memory, adaptation through methylation, and why this one phenomenon is a good way into understanding biology as a whole.
28 min · 6,437 words
The quiet math revolution (and where do we go from here)
Marcus Johansson reacts to OpenAI’s dump of 722 model-written math manuscripts, asking what machine-checked proofs mean for mathematical practice, who still understands the results, and where Terence Tao’s “Math 2.0” idea leaves human mathematicians.
10 min · 2,396 words
Is ‘Attention’ the Essence of Intelligence?
Quanta columnist Natalie Wolchover traces the attention mechanism from Dzmitry Bahdanau's 2014 internship work on machine translation in Montreal through transformers to today's AI boom, and asks why attention turned out to be the key mathematical idea, drawing on researchers' views about what it captures and whether brains do something similar more efficiently.
10 min · 2,402 words
We're missing an entire kind of asteroid
Signore Galilei explains why almost every gravitationally stable region of the Solar System has known asteroids—except one conspicuous empty niche—and what that absence might mean.
4 min · 866 words
Do dentists actually know what they’re doing?
In vignettes from age 17 to 33, Parker Tatum recounts jaw pain, night guards, cavities and gum recession, and the conflicting diagnoses of a succession of dentists, orthodontists, periodontists and surgeons who each dismiss the previous one's work, raising the question of whether any of them know what they're doing.
16 min · 3,778 words
An essay comparing commodity and engineering plastics to literary character types—why “polymer” is often marketing spin, and how chemistry shapes toughness, clarity, heat tolerance, and reputation.
7 min · 1,565 words
Quo Vadis, Mathematics?Is Mathematics Over, or Just Graduating?
xAI co-founder Christian Szegedy asks whether mathematics is ending or graduating as AI automates theorem proving—drawing on Hungarian competition culture to argue AI will scale applied math as infrastructure while “high math” concentrates on deepest questions.
8 min · 1,877 words
Phase LockA manifesto on brain-computer interfaces and preserving human agency in the age of AI.
Executive summary of Saturnin Pugnet's manifesto arguing that a bandwidth gap between human cognition and AI threatens human agency, and that brain-computer interfaces offer alignment-by-integration. He contends AI scaling laws will carry over to brain decoding, that consumer non-invasive BCI is the fastest path to scale, and that a Phase Lock Window to shape the outcome is open now.
4 min · 861 words
In a guest post on Astral Codex Ten, Drew Housman describes how he and his wife leaned on ChatGPT, from early GPT-4 workarounds onward, to navigate unexplained infertility, credits AI with helping them have their son, and pushes back on reflexive anti-AI discourse.
7 min · 1,550 words
Why consciousness is more likely a property of life than of computation and why creating conscious, or even conscious-seeming AI, is a bad idea.
34 min · 7,804 words
Claude-shaped scienceWorking on Claude-shaped problems with BootLoops, a toolkit for exact calculations in quantitative science
Harvard physicist Matthew Schwartz’s Anthropic guest post on BootLoops: an open-source harness that steers LLMs toward checkable, quantitative “Claude-shaped” problems across physics, ecology, genetics, and more—with human experts supplying scientific taste.
5 min · 1,244 words
Using Opus 5.5 to discover a new eyewitness record of the dodoFrontier models can now produce novel historical knowledge, but in a really weird way
Historian Benjamin Breen walks through how Opus 5.5 surfaced a previously unnoticed 1615 Dutch East India Company log mentioning dodos—and what AI archival sleuthing can and cannot yet do.
3 min · 631 words
Maya Rosen argues in Works in Progress that the US resurgence of dengue and locally acquired malaria is avoidable, because engineered self-limiting and Wolbachia mosquitoes already work in field trials but spent some fifteen years bouncing between the USDA, FDA, and EPA, and she calls for a faster approval path.
10 min · 2,335 words
Historians often blame drought, famine, and invaders for the Late Bronze Age collapse—but that can’t explain why the empires never came back. Patrick Fitzsimmons argues for a deeper structural story.
14 min · 3,253 words
In Ukraine, distributed renewables foil Russia's assaults
Paul Hockenos reports from Mykolaiv and elsewhere on how small off-grid solar fields, batteries, and other distributed renewables keep water and power flowing in Ukraine despite Russian strikes on centralized plants, and why the larger grid will still need protected transmission.
6 min · 1,355 words
What's the Future for Pure Math Research in the Age of AI?
Stephen Wolfram surveys AI’s growing role in pure mathematics—headline ‘solved’ problems, what automation does and doesn’t replace, and how human mathematical taste and research programs may evolve.
31 min · 7,084 words