My Blog

Scott Alexander gentrified my meetup - On 10 April 2026, I organized an ACX/LW/rationality meetup. Initially, I intended for it to be just our regular meetup, and “regular” for Zagreb is betwe...

Polymath News and AI - A post over “Combinatorics and More” describes Nissan Hajaj’s proposal to combine AI with polymath projects. Together with Nissan Hajaj and Ido Kaminer we ...

Products of consecutive integers with unusual anatomy - I’ve just uploaded to the arXiv my paper “Products of consecutive integers with unusual anatomy“. This paper answers some questions of Erdős and Graham whi...

Group and semigroup puzzles and a possible Polymath project - An Artin-Tits group is a group with a finite set of generators in which every relation is of the form or for some positive integer , where and are two of t...

The Golden Rational Tetrahedra in Zome - [image: The Golden Rational Tetrahedra in Zome preview image]

Blade of the Immortal Bakumatsu Arc 07 - Act 7

Comsos : Review - [image: Cosmos]Cosmos by Carl Sagan My rating: 5 of 5 stars Carl Sagan's beautiful words transform you to outside the earth, into the cosmos and lets you ...

Irrationality Of E - Prove that e is irrational. Problem ID: 377 (17 Oct 2010) / Difficulty: 4 star