Best of 2025

The blog posts Hacker News loved most in 2025. 422 posts.

Science & Space
73

LLMs aren't world models

I believe that language models aren’t world models. It’s a weak claim — I’m not saying they’re useless, or that we’re done milking them. It’s also a fuzzy-sounding claim — with its trillion weights, who can prove that there’s something an LLM isn't a model of? But I hope to make my claim clear and persuasive enough…