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David Bessis

I write about mathematics and human cognition.

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Substack
PricingOnly free issuesPublishesMonthly
Issues15Founded2 years agoLast Issue6 months ago
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Latest Issues

The fall of the theorem economy

“The product of mathematics is clarity and understanding. Not theorems, by themselves.”
—Bill Thurston

Handwritten diagram by Alexander Grothendieck

My best theorem is one I never wrote down.

It crystallized one bright morning in Lausa...

6 months ago
962
120

Letter to a PhD student

One morning about a week ago, I opened my direct messages tab on X and found this inbound request:

I am someone finishing up a PhD in [a subject that isn’t pure math]. How should I cope with the claims that agi is here in 1-3 years and t...

8 months ago
444
55

Attention is all we have

Hand drawing of neurons by Santiago Ramón y Cajal

Some people are smarter than others—and some are fabulously smart. We may disagree on many things, but can we at least agree on that?

The origin of cognitive inequality is a hot, divisive...

8 months ago
1761
142

Thinking fast, slow, and super slow

A ball and a bat cost a total of $1.10. The bat costs $1 more than the ball. How much does the ball cost?

I borrowed this problem from Daniel Kahneman’s Thinking, Fast and Slow. I encourage you to try it with your friends. Most people will...

10 months ago
453
49

Twins reared apart do not exist

This story began two years ago, during the pre-launch of my book on the cognitive techniques of mathematicians. As authors do in those circumstances, I sent a handful of copies to selected high-profile people, in the hope that it would spar...

10 months ago
650
128

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