Best of 2025

The blog posts Hacker News loved most in 2025. 668 posts.

Life, Learning & Writing
523

Why We Think

Special thanks to John Schulman for a lot of super valuable feedback and direct edits on this post. Test time compute (Graves et al. 2016, Ling, et al. 2017, Cobbe et al. 2021) and Chain-of-thought (CoT) (Wei et al. 2022, Nye et al. 2021), have led to significant improvements in model performance, while raising many…

536

I miss using em dashes

I really miss using em dashes in my writing. Ever since content creators started using ChatGPT to help (or supplement) their writing, em dashes have become indicators of AI use. Students are routinely caught with their pants down as professors flag an essay as AI-generated based on the presence of lists…