Mathematics
102 episodes
#6189: What "Real" Improvement Actually Means in AI Evals
A p-value isn't the probability your result was luck. Here's what chance actually means in AI benchmarks — and why bold numbers need cross-examinat...
#6152: Whatever Happened to the One-Time Pad?
The math is unbreakable. The humans are the problem. Tracing the one-time pad from 1882 codebooks to quantum key distribution.
#6142: We Gave 4 AI Models the Same Toast Prompt
Four models, one buttered-toast physics question. Three invented studies that never existed — and the oldest model was the most fun.
#5929: Who Believes God Is Personally Involved? The Data on Divine Providence
Three different ideas hide inside "everything happens for a reason" — and the polling on who actually believes God is involved in their life is str...
#5887: Gears That Did Calculus: Mechanical Computers
From the Antikythera mechanism to battleship fire control, how gears and cams did real math — and why the approach never fully died.
#5886: From Leviticus to the Kilogram: Honest Scales
Ancient Athens had ten inspectors and a rock. The kilogram had one cylinder in a vault. Both were asking the same question.
#5828: Punched Cards: The 200-Year Reign of Cardboard Computing
From Jacquard's silk looms to NSA key tapes, how holes in cardboard ran the world for two centuries — and why we can still read them.
#5755: What Makes a School System "Best"?
Korea tops the test scores, Finland skips the pressure. What are we actually measuring when we rank schools?
#5742: What Neuroarchitecture Says About Your Desk
A technologist and his architect wife disagree about rooms. Turns out neuroscience has a lot to say about who's right.
#5688: Can We Normalize Breaking Into Song in Public?
Daniel wants to sing in the sandwich line. Here's what the science says about group singing, embarrassment, and why we don't.
#5600: Alien Abductions: 4 Million Claims, Zero Evidence
Nearly four million Americans say they've been abducted. Not one has produced a lab-verifiable artifact. What's going on?
#5598: When "You Look Great" Means "I'm Drowning
Masking isn't wellness — it's adaptation under pressure. Why the most put-together people are often the ones nobody thinks to check on.
#5569: Measuring Democracy Beyond Voter Turnout
Voter turnout is one reading from one instrument. What else tells us whether a democracy is actually engaged?
#5545: Jet Engines on Bicycles: The Physics of Bad Ideas
A pulsejet strapped to a bike sounds like a fighter jet — and burns 55 gallons an hour to move one guy who could have pedaled.
#5449: The Neurotic Jew: Where the Stereotype Came From
The anxious, overthinking Jewish personality — where did it actually come from? The answer isn't what you'd expect.
#5319: Focus Stacking Without the Phone App Guesswork
Your phone app wants three shots. The optics want three hundred. Here's how to actually stack macro focus.
#5219: Speechreading: What Lips Can and Can't Tell Us
Lips carry only 30–40% of speech sounds. What speechreading actually is, how the brain fuses sight and sound, and why forensic lip reading fails.
#5205: Measuring Rooms From One Photo
One photo, one reference ruler, and a geometry trick from 1999 that measures objects without any AI at all.
#5161: How Statistics Get Misread: A Field Guide
Averages, rates, correlations — the ten categories of statistics most likely to fool a general audience, and why the number is usually right.
#5145: What Life Expectancy Really Meant in the 1600s
That "people died at 35" statistic? It's mostly measuring dead children, not short adult lives.
#5128: The 120 Hz Problem: Why Your Window Can't Stop That Jackhammer
A bedroom-shattering 120 Hz tone reveals why low-frequency noise ignores windows, mocks active noise cancellation, and demands real physics.
#5064: What a Polar Station Stocks for a Year of Isolation
The hidden logistics of keeping isolated crews fed, healthy, and sane for months without resupply.
#4977: The Measurement Ladder: From Tape Measures to Point Clouds
Seven rungs of physical measurement, from steel tape to laser scanners. Where error lives and what you trade at each step.
#4974: When a Culture You've Never Lived In Feels Like Home
Why K-dramas, Japanese aesthetics, or Kazakhstan can feel more like home than your own culture.