John D. Cook
@JohnDCook
Consultant in applied math and data privacy
When I started consulting, clients approached me with math/stat problems. Now clients need conscientious problem solving, and there may not be any math/stat component.
"Once you start looking for confirmation bias you see it everywhere." — Michael Feathers
Overtones and Barbershop Quartets johndcook.com/blog/2025/04/2…
Listening to some AI-generated text-to-speech. It read 𝕏 as "Big X." I kinda like that.
reading @JohnDCook's math posts feels like Lewis Carroll's mazes, luring you down rabbit holes you didn't know you misunderstood: johndcook.com/blog/2024/07/0…
An elderly Italian man living alone in New Jersey wanted to plant his annual tomato garden, but it was challenging work, since the ground was hard. His only son, Vincent, who used to help him, was in prison. The old man wrote a letter to his son and described his predicament:…
The **average** age is 68??
How embarrassing. x.com/yalinewich/sta…
Count Rostov, the protagonist of the novel A Gentleman in Moscow, goes out of his way to show he's an erudite connoisseur but then goes and spoils it all by referring to the shape formed by a necklace held at both ends as a parabola instead of a catenary curve
I've started watching the miniseries based on Amor Towles' book A Gentleman in Moscow. It illustrates how communists hate beautiful things simply because they are beautiful.
Do incremental improvements add, multiply, or something else? johndcook.com/blog/2024/07/0…
Over 30% of the “experts” who created the American Academy of Pediatrics guidance recommending Ozempic as a first-line defense for 12-year-olds were being paid by @novonordisk or @EliLillyandCo
Morse code operators can hear faster than theoretically possible johndcook.com/blog/2025/04/2…
