Best of 2022

The blog posts Hacker News loved most in 2022. 182 posts.

Science & Space
44

How Intelligent Are Cats? (2004)

Cat owners often claim that cats are too intelligent to do the sort of tricks that dogs do willingly. Others believe cats are unintelligent because it's harder to train them to do tricks. In this article (on 2 pages) I aim to explain some of these differences and explore feline intelligence and the limitations on…

48

Empirical Notes on Kissing

Before my first kiss, I scoured The Internet (Google Scholar + tracing blog posts back to their underlying studies - this was some time ago so I don’t still have the sources) for every valuable scrap of information available on the topic while trying to stray away from anything opinion-based. This is the result.

60

Geometry from Another Universe

You start on an enclosed lawn, surrounded by four walls with a doorway in one of them. If you go in and explore, you might begin to feel trapped. You'll find you can visit five different rooms in the house, or go back outside to the lawn, but there's no way to go anywhere else. It's not because there are walls…