Science & Math
10 essays.
A rare disease, a 99% accurate test, a positive result — and roughly a 9% chance you're ill. The gap comes from one number most people leave out entirely.
Around thirty per cent of numbers in real datasets begin with 1, and only five per cent with 9. People inventing figures don't reproduce that — which is how the pattern became an auditing tool.
The statistics taught in most classrooms describe a world of averages. A surprising amount of what actually matters lives in the extremes instead.
The hardest problems left in quantum computing are as much about error correction and business cases as they are about qubits.
A treatment beats its rival for small stones, beats it for large stones, and loses when you combine the patients. Nothing was miscalculated — which is what makes it worth understanding.
One die is flat. Ten dice added together make a bell curve. The shape is a property of adding independent things — which tells you exactly when to expect it and when not to.
An unusually good or bad result is disproportionately likely to be followed by a more ordinary one — not because of any correction, but because extremes are rare by definition.
Seven heads in ten flips is unremarkable; seventy thousand in a hundred thousand would be extraordinary. The same probability, different room for chance — with consequences most people miss.
Elliptic curve cryptography secures a huge share of the internet's traffic, and almost none of its users could describe what it actually does.
Finding a biosignature in another planet's atmosphere wouldn't prove life exists. It would just make the silence a lot more interesting.