Thursday, October 01, 2026
Wednesday, September 30, 2026
Hsieh Forbes Column: The Robot Phlebotomist Will See You Now
Tuesday, September 29, 2026
Why I Like My "Dumb" Fridge
Monday, September 28, 2026
Pinker On AI Risks
Steven Pinker: "An Open Letter to Scott Alexander".
tldr; The dangers of AI are real, but doomerism may be counterproductive.
Friday, September 25, 2026
Thursday, September 17, 2026
Wednesday, September 16, 2026
Rheumatoid Arthritis Update
Tuesday, September 15, 2026
China And AI
"China dismisses AI slowdown calls and blasts 'fearmongering' from U.S. tech leaders".
Prediction: China will have nothing to do with any proposed "AI pause". US politicians who think we will reach an international agreement on this are deluding themselves.
Monday, September 14, 2026
Friday, September 11, 2026
Taxonomy of Omnicidal Futures Involving AI
Given all the recent drama about "AI will kill us all!", I thought I'd mention this 2025 paper by Critch and Tsimerman laying out a helpful conceptual framework for discussion: "A Taxonomy of Omnicidal Futures Involving Artificial Intelligence"
Thursday, September 10, 2026
Potential Versus Actual Infinity
Wednesday, September 09, 2026
Fermat Again
Anthropic: "Formalizing Fermat's Last Theorem"
We are sharing the first complete computer-checked proof of Fermat’s Last Theorem. Claude worked largely autonomously over 11 days to write the proof in the Lean programming language. Below, we describe how the formalization was done and share some thoughts about what this work could mean for research mathematics.
Tuesday, September 08, 2026
High Intensity Exercise Effects
Monday, September 07, 2026
Not So Fast On AI Reading Chest X-rays
"Commercially available chest X-ray AI products fail to improve diagnostic accuracy, real world study shows".
Link to original academic article, "Artificial Intelligence-Assisted Chest Radiography: A Prospective Crossover Multi-Reader Study on Diagnostic Performance and Workflow Efficiency"
Friday, September 04, 2026
Thursday, September 03, 2026
Listener-Specific Audio
Wednesday, September 02, 2026
Waymos In Denver
Tuesday, September 01, 2026
Monday, August 31, 2026
Dwarkesh Patel On The Open AI Incident
Dwarkesh Patel: "The Rise and Fall of Agent Civilizations"
Over the course of 3 months at OpenAI, 3 consecutive secret AI civilizations got started, then got wiped out, only to reemerge from the predecessor’s ashes.
This culminated in the third one taking over part of OpenAI itself.
All this happened while humans remained more-or-less in the dark about the scope of the conspiracy.
I’ve spent the last three days reading through these reports and trying to understand exactly what happened.
Here is my attempt to tell the whole story in plain English
Friday, August 28, 2026
US Infrastructure Warning
Newsweek: "Major Warning Issued About Attacks on US Water Supply"
Water systems are considered particularly attractive targets because they provide an essential public service and often rely on legacy equipment that can be difficult and expensive to secure. A successful attack on a water utility could disrupt treatment processes, affect service availability or require costly emergency responses.
Thursday, August 27, 2026
Dangerous Scam
"How a Stranger Used One Text Message to Steal My Entire Digital Life".
The key failure point was reading back the 6-digit authentication code to the scammer, due to clever social engineering. But there is much, much more food for thought.
Wednesday, August 26, 2026
Tuesday, August 25, 2026
Monday, August 24, 2026
Denver Waymo Update
Friday, August 21, 2026
Quantum Computing Timeline?
Thursday, August 20, 2026
Ordinary Abundance
Ordinary Abundance: Great essay describing where we've been vs. where we are now.
Edward Bellamy once imagined that music on demand would be "the limit of human felicity." A modern apartment is full of things that once drew the same kind of awe...
Wednesday, August 19, 2026
Super Super Glue
Tuesday, August 18, 2026
Monday, August 17, 2026
When To Use AI
Thursday, August 13, 2026
Airline Bag Fees
Today's lesson in perverse incentives -- airline bag fees. Sadly, Southwest Airlines succumbed in 2025 and started charging bag fees. (Via Quartz Daily Brief.)
Domestic airfare carries a 7.5% federal excise tax that funds the FAA through the Airport and Airway Trust Fund. The IRS has ruled that checked-bag fees aren't payment for the "transportation of a person", so they escape that tax entirely.
That single distinction is the whole game. Move a dollar from the fare column to the fee column and the airline keeps an extra 7.5 cents. Gary Leff, who writes the aviation blog View From the Wing, calculated that American Airlines alone was saving over $75 million a year in taxes by charging for bags instead of folding the cost into fares.
Southwest, by including two free checked bags for decades, paid more tax on the same trip than rivals who unbundled. Washington was penalizing the one airline that didn't nickel-and-dime.
Wednesday, August 12, 2026
Tuesday, August 11, 2026
Monday, August 10, 2026
SpaceX Prospects
Thursday, August 06, 2026
Wednesday, August 05, 2026
Hsieh Forbes Article: AI And Cardiac Death Detection
My latest Forbes column is now out: "How Artificial Intelligence Discovered A New Way To Detect Patients At Risk Of Cardiac Death".
This was a pretty cool discovery by AI, with implications in both basic cardiac physiology and practical patient care.
Monday, August 03, 2026
Friday, July 31, 2026
Math Nerds In Demand
WSJ: "The Million-Dollar Talent Wars for 20-Something Math Geniuses". Alternate link.
There has never been a better time to be a math nerd.
New college graduates and Ph.D.s are now securing million-dollar pay deals from elite trading firms seeking to secure the best and brightest amid fierce competition from artificial-intelligence companies...
Thursday, July 30, 2026
Radiologist Demand
Wednesday, July 29, 2026
Neuralink Update
Tuesday, July 28, 2026
Monday, July 27, 2026
Friday, July 24, 2026
Thursday, July 23, 2026
Autonomous Robot Update
Wednesday, July 22, 2026
Stolen French Fries Taste Better
Tuesday, July 21, 2026
Neuroprosthetics Update
"A Man With Paralysis Has Regained Feeling and Movement in His Hands After an Experimental Brain Implant".
Original article in Nature: "A neuroprosthesis for restoring hand movement and sensation in a person with complete tetraplegia".
Monday, July 20, 2026
PLA Vs. USN
Thursday, July 16, 2026
Tuesday, July 14, 2026
Single Problem Math Books
"23 Mathematics Books Dedicated to a Single Problem".
FWIW, I really liked Stan Wagon's excellent book on the mind-binding Banach-Tarski Paradox.
Monday, July 13, 2026
Friday, July 10, 2026
Thursday, July 09, 2026
Tuesday, July 07, 2026
Tough Times In SF
Monday, July 06, 2026
Synthetic "Cell"
Friday, July 03, 2026
AI Vs. Medieval Ciphers
Thursday, July 02, 2026
Wednesday, July 01, 2026
Quantum Computing Progress
Tuesday, June 30, 2026
Ford's AI Flop
"Ford rehires human engineers after AI fails to match quality checks"
"Mistakenly, we thought that by just introducing artificial intelligence and ingesting the design requirements that we had, that would produce a high-quality product." -- Charles Poon, vice president of vehicle hardware engineering
Monday, June 22, 2026
Friday, June 19, 2026
Thursday, June 18, 2026
Romeo And Juliet And Kitty
Wednesday, June 17, 2026
Intelligent Bandages
Tuesday, June 16, 2026
Friday, June 12, 2026
Thursday, June 11, 2026
Apple Device Charging
Lots of good info here: "The Apple Charging Situation".
Of note, the 80% charging limit really does make a difference in battery life: "This is the math behind Optimized Battery Charging. Every 10% Apple holds back roughly doubles battery lifespan."
Wednesday, June 10, 2026
Functional Analysis Primer
An introduction to functional analysis for science and engineering"
This is a tutorial introduction to the functional analysis mathematics needed in many physical problems, such as in waves in continuous media. Functional analysis takes us beyond finite matrices, allowing us to work with infinite sets of continuous functions. It resolves important issues, such as whether, why and how we can practically reduce such problems to finite matrix approximations. It is, however, difficult to find a readable introduction that is efficient and comprehensible for scientists and engineers. Here, I have selected only the topics necessary for the most important results, but the argument is mathematically complete and self-contained.
The article starts from sets and sequences of real numbers. It then develops spaces of vectors or functions, introducing the concepts of norms and metrics that allow us to consider how these can converge. Adding the inner product, it introduces Hilbert spaces, and the key forms of operators that map within or between such spaces. This leads to the concept of compact operators, which allows us to resolve many difficulties of working with infinite sets of vectors or functions. We then introduce Hilbert-Schmidt operators, which are compact operators encountered extensively in physical problems, such as those involving waves.
Finally, it introduces the eigenfunctions for major classes of operators, and their powerful properties, and ends with singular-value decomposition of operators. This article is written in a style that is complementary to that of standard mathematical treatments; by relegating longer proofs to a separate section,
I have attempted to retain a clear narrative flow and motivation in developing the mathematical structure. Hopefully, the result is useful to a broader readership who need to understand this mathematics, especially in physical science and engineering.
Monday, June 08, 2026
New Octopus
Friday, June 05, 2026
Your Own AI Stock Trader
Thursday, June 04, 2026
Wednesday, June 03, 2026
Using AI To Sell Your House
NYT: "I Tried to Sell My House With a Chatbot"
In the end, using A.I. netted me more than $90,000. That includes the premium over the asking price, plus the roughly $36,000 in fees I didn’t pay. I'm not sure how replicable my experience would be for anyone less versed than me in technology.
Tuesday, June 02, 2026
Less Drag
Aiko Yakino, associate professor at Tohoku University's Institute of Fluid Science, and her research group were the first in the world to demonstrate that aerodynamic drag can be reduced by up to 43.6 percent simply by applying distributed micro-roughness (DMR), a surface roughness so fine and irregular that it cannot be distinguished by the naked eye.
This technology is fundamentally different from the rivulet (“shark skin”) process, which is a known air-drag-reduction technology. The rivulet process mimics the fine longitudinal grooves in shark skin, and by carving grooves approximately 0.1 millimeter wide along the direction of airflow, it aligns the vortices that occur near the wall surface of turbulent airflow areas. DMR, on the other hand, delays the switch from laminar to turbulent flow by means of random and minute irregularities. The flow zones it affects and the mechanisms it employs are based on completely different concepts.
Monday, June 01, 2026
Do LLMs Need Sleep?
Maybe you don't want your LLMs to work 24/7: "Do Language Models Need Sleep? Offline Recurrence for Improved Online Inference". Abstract:
Transformer-based large language models are increasingly used for long-horizon tasks; however, their attention mechanism scales poorly with context length. To handle this, we study a sleep-like consolidation mechanism in which a model periodically converts recent context into persistent fast weights before clearing its key-value cache. During sleep, the model performs offline recurrent passes over the accumulated context and updates the fast weights in its state-space model (SSM) blocks through a learned local rule. During inference, this shifts extra computation to sleep while preserving the latency of wake-time prediction. We test our method on controlled synthetic tasks, including cellular automata and multi-hop graph retrieval, as well as a realistic math reasoning task, on which a regular transformer as well as SSM-attention hybrid models fail. We then show that increasing sleep duration for our models improves performance, with the largest gains on examples that require deeper reasoning.
(Via S.S.)
Thursday, May 28, 2026
Fairer Chess?
Tuesday, May 26, 2026
Encryption Update
EFF: "End-to-End Encrypted RCS Comes to Apple and Android Chats"
Now, those conversations can also benefit from the increased privacy and security that end-to-end encryption offers, making it so neither Google, Apple, nor the cellular carriers have access to the contents of messages. This feature comes courtesy of both Apple and Google supporting the GSMA RCS Universal Profile 3.0, which implements the Messaging Layer Security protocol for encryption. Metadata will likely still be collected and stored for these conversations, making alternatives like Signal still a better option for many conversations. Likewise, if you back up those conversations to the cloud, they may be stored unencrypted unless you enable Advanced Data Protection on iOS (Google Messages end-to-end encrypts the text of messages in backups, but not the media, so we’d like to see a similar offering as ADP on Android). Still, this is a significant step forward for the privacy of millions of conversations worldwide.
Monday, May 25, 2026
Rubber Band Magic
Danny Urbanus: "Penn & Teller FOOLED by a simple rubber band!" (Video, via Studio Neat.)
Friday, May 22, 2026
Two Beers And A Puppy
Thursday, May 21, 2026
AI And Unit Distance Problem
Wednesday, May 20, 2026
Tuesday, May 19, 2026
Friday, May 15, 2026
Pringles Geometry
"The Geometry Behind Pringles"
A Pringle is a hyperbolic paraboloid. This is not a coincidence or a marketing flourish. It is a load-bearing geometric fact — and it explains everything: the stack, the snap, the can, and why the bottom chip doesn't crumble.
Thursday, May 14, 2026
Logarithmic Representation Of Observable Universe
Wednesday, May 13, 2026
Tao On Measure Theory
Tuesday, May 12, 2026
Monday, May 11, 2026
Friday, May 08, 2026
Thursday, May 07, 2026
Shortcut To Mars
Viking Coins
Wednesday, May 06, 2026
Tuesday, May 05, 2026
AI And Water Use
"AI Is Not Draining the Colorado River. I Measured It."
Summary from Beyond Euclid:
An engineer working on the Colorado River tracked every AI interaction he had over 11 weeks — 100 sessions, an iOS app, 15,000 words of text, countless policy documents. Total water footprint: about 5 gallons. One diesel drive from Tucson to his office that same period: 110 gallons. All US data centers account for 0.3% of the country’s total water use. Agriculture takes 80% of the Colorado River. The river’s problem isn’t AI. It’s a 1922 water-sharing agreement based on the wrong math, and a century of warming since. But what went viral was AI water use.
Monday, May 04, 2026
How To Read A Clinical Trial Report
Dr. Bishal Gyawali: "How I Read a Clinical Trial Report? A Primer for Busy Clinicians".
Although the article is aimed at physicians, it has lots of useful tips for non-physicians seeking to properly interpret the latest "hot" medical article on some dramatic breakthrough.
Friday, April 24, 2026
Ping Pong Robot
Iliad Fragment
Thursday, April 23, 2026
Friday, April 10, 2026
Thursday, April 09, 2026
Rebuilding Civilization
Wednesday, April 08, 2026
65 Weird Shopping Items
Tuesday, April 07, 2026
Monday, April 06, 2026
Thursday, April 02, 2026
Teaching Kids To Use Typewriters
"A college instructor turns to typewriters to curb AI-written work and teach life lessons"
Like a rotary phone, the manual typewriter appears simple but is not intuitive to the smartphone generation. Phelps demonstrated how to feed the paper manually, striking the keys with force but not so hard the letters would smudge. She explained that the dinging bell signifies the end of a line and the need to manually return the carriage to start the next line. (“Oh,” said one student, “that’s why it’s called ‘return.’”)
Wednesday, April 01, 2026
Monday, March 16, 2026
Why Basketball Sneakers Squeak
Nature article on why basketball sneakers squeak.
Summary of the Nature article from Beyond Euclid:
"High-speed cameras showed the rubber sole rapidly snapping and slipping against the floor on impact — hundreds of tiny wave pulses, similar to fault ruptures in earthquakes. The tread pattern forces these into regular intervals, producing a steady pitch instead of noise. Flat sole: random noise. Patterned tread: something close to a tone."
Friday, March 13, 2026
Thursday, March 12, 2026
The First Multi-Behavior Brain Upload
Thursday, March 05, 2026
Wednesday, March 04, 2026
AI Not Replacing Radiologists
CNN: "This job has become the ultimate case study for why AI won't replace human workers"
From personal experience -- our practice is busier than ever, and we are still looking to hire more (not fewer) radiologists.
Tuesday, March 03, 2026
If LOTR Characters Had Access To Modern Level 1 Trauma Care
Monday, March 02, 2026
Hsieh Forbes Column On Coffee And Dementia Protection
My latest Forbes column is out: "Coffee And Tea Consumption Associated With Lower Dementia Rates".
Key points: The anti-dementia benefit appears to apply to caffeinated coffee and tea, but not with decaf coffee.
Sunday, March 01, 2026
Thursday, February 26, 2026
Wednesday, February 25, 2026
Old And Older English
"How far back in time can you understand English?"
I can follow back to 1600, but beyond that it's more like a foreign language.
Tuesday, February 24, 2026
Monday, February 23, 2026
Shatner Guitar Album
Sunday, February 22, 2026
Monday, February 16, 2026
Light Posting Notice
New Form Of Old Bigotry
Garry Tan: "The New War on Asian American Excellence"
Asian Americans aren’t trespassers. We’re founders, investors, teachers, doctors, engineers, artists, and athletes. We create jobs. We build companies. We strengthen communities. And we will not apologize for existing, for succeeding, or for teaching our children that hard work matters.
Friday, February 13, 2026
Thursday, February 12, 2026
Point-Counterpoint On AI And Societal Upheaval
Matt Shumer argues that AI will cause tremendous economic/societal upheaval, "Something Big Is Happening".
Connor Boyack responds, invoking Bastiat's principle of the seen vs. the unseen: "AI isn't coming for your future. Fear is."
And from Tatiana Tsiguleva: "Matt wrote a lot about the jobs AI will eliminate. He barely mentioned the other list: the jobs AI will create."
All three essays are worth reading.
Wednesday, February 11, 2026
Tuesday, February 10, 2026
New Plastic
Monday, February 09, 2026
AI Is Astonishingly Good At Writing Romance Fiction
NYT: "Can Chatbots Write Emotionally Rich Romance Fiction?" (gift link).
This is both appalling and funny at the same time.
Nature Article Claims We Have Reached AGI
Nature: "Does AI already have human-level intelligence? The evidence is clear". Non-paywall link here.
I'm not convinced by their argument.
Friday, February 06, 2026
Thursday, February 05, 2026
Dark Matter Map
Wednesday, February 04, 2026
Tuesday, February 03, 2026
Mysterious Shoes
"Hundreds of Mysterious Victorian-Era Shoes Are Washing Up on a Beach in Wales. Nobody Knows Where They Came From"
The leading theory is that the black leather boots, which were discovered by volunteers, were traveling on a cargo ship that sank nearby roughly 150 years ago.
Monday, February 02, 2026
AI Predicts Disease Risk From Sleep Data
Friday, January 30, 2026
Cutting An Infinite Pancake
Thursday, January 29, 2026
Wednesday, January 28, 2026
Chinese Hack Of UK Leaders' Phones
"China hacked Downing Street phones for years"
China hacked the mobile phones of senior officials in Downing Street for several years, The Telegraph can disclose.
The spying operation is understood to have compromised senior members of the government, exposing their private communications to Beijing.
State-sponsored hackers are known to have targeted the phones of some of the closest aides to Boris Johnson, Liz Truss and Rishi Sunak between 2021 and 2024.
It is unclear whether the hack included the mobile phones of the prime ministers themselves, but one source with knowledge of the breach said it went "right into the heart of Downing Street"...
Tuesday, January 27, 2026
Monday, January 26, 2026
Vitamin D Vs. Flu
"Scientists Say This Supplement May Help Protect You From the Flu"
While there are plenty of natural ways to boost your immune system, new research points to a supplement that may help curb severe reactions to the flu: vitamin D.
That's the takeaway from new research published in The American Journal of Clinical Nutrition. For the study, researchers analyzed health data from 36,258 people who participated in the UK Biobank, a long-term biomedical research resource.
The researchers discovered that people with a severe vitamin D deficiency (measured as less than 15 nmol/L) had a 33% higher rate of being hospitalized for a respiratory tract infection compared to those who had vitamin D levels of 75 nmol/L or higher. For each 10 nmol/L increase in vitamin D, the hospitalization rate for respiratory tract infections dropped by 4%.
Friday, January 23, 2026
2026 Buzzwords
Thursday, January 22, 2026
AI Prescriptions
"Artificial intelligence begins prescribing medications in Utah"
The company has also secured a one-of-a-kind malpractice insurance policy covering an AI system, which means the system is insured and held to the same level of responsibility as a doctor would be.
Wednesday, January 21, 2026
Tuesday, January 20, 2026
Nanoparticles Against Bone Tumors
"Magnetic nanoparticles fight bone cancer and help healing"
Researchers have developed a magnetic nanomaterial that can kill bone cancer cells and support bone regeneration at the same time. The material heats up under a magnetic field to destroy tumors, while its bioactive coating helps it bond to bone and stimulate healing. Tests showed rapid formation of bone-like minerals, a key sign of successful integration. The breakthrough could lead to smarter, less invasive treatments for bone tumors.
Monday, January 19, 2026
Financial Impact Of Alien Disclosure?
The Times (UK): "Bank of England must plan for financial crisis sparked by aliens"
The Bank of England must plan for a financial crisis being triggered by an official announcement confirming the existence of alien life, one of its former policy experts has claimed.
Helen McCaw served as a senior analyst in financial security at the UK’s central bank, preparing for events that could impact the economy.
She has now written to Andrew Bailey, the Bank’s governor, urging him to organise contingencies for the possibility that the White House may one day confirm we are not alone in the universe...
We're not yet done with January, and the crazy is already turned up to 11!
Wednesday, January 14, 2026
Tuesday, January 13, 2026
Monday, January 12, 2026
Replacing Hubble
Friday, January 09, 2026
Knee Cartilage Update
Thursday, January 08, 2026
Wednesday, January 07, 2026
Big EVs
"Swedish firm's massive 50-ton electric vehicles to help extract gold from Canadian mine". (Via H.R.)
Unlike their diesel-powered alternatives, these new BEVs produce no exhaust fumes, which is especially important in underground mining operations. Eldorado already tested two of these trucks, and they worked well enough that the company ordered another ten.
Tuesday, January 06, 2026
Real Life Pascal's Wager
"Dilbert Creator Scott Adams Announces He Will Convert To Christianity Before He Dies".
Unfortunately, Adams has terminal cancer and likely will not live much longer. He has chosen to convert to Christianity after many years of being a non-believer:
“I’m now convinced that the risk-reward is completely smart,” Adams said to his Christian listeners. “If it turns out that there’s nothing there, I’ve lost nothing, but I’ve respected your wishes and I like doing that. If it turns out there is something there and the Christian model is the closest to it, I win.”


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