Want to dive into Scott Alexander's work and his thousands of blog posts? This fan website lets you sort and do semantic search through the whole codex. Enjoy!

See also Top Posts and All Tags.

Tag: Kelsey Piper

Minutes:
Pick a custom range (minutes). Leave a field empty for no limit.
Blog:
Year:
2026
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
Tags:
Filter by tag...
Exclude tag...
5212 tags
Links:
Filter by linked site (twitter, substack…)
2 posts found
Compact Mode
Save Reads
Feb 26, 2026
acx
Read on
16 min 2,403 words 433 comments 426 likes podcast (17 min)
Scott argues that dismissing AI as 'just a next-token predictor' is like dismissing humans as 'just reproduction machines' - both confuse the optimization process that shaped an entity with how that entity actually thinks. Longer summary
Scott argues that dismissing AI as 'just a next-token predictor' confuses levels of optimization. He draws an analogy to humans: just as humans were shaped by evolution optimizing for reproduction but don't think about sex when doing math, AIs were shaped by next-token prediction but don't simply predict tokens when thinking. Scott explains that human brains use predictive coding (predicting next sense-data) to build world-models, while AIs use next-token prediction to build their own world-models. Both processes create complex internal representations - like helical manifolds in 6D space for AIs, or toroidal attractors in human hippocampi - that operate far above the level of simple prediction. The post concludes that both humans and AIs perform 'real thought' using structures created by their respective optimization processes. Shorter summary
Oct 30, 2025
acx
Read on
42 min 6,423 words 803 comments 211 likes podcast (38 min)
Scott Alexander presents 51 links covering AI progress and safety, political developments, scientific research, cultural oddities, and ongoing philosophical debates about miracles and education reform. Longer summary
Scott Alexander shares 51 links covering diverse topics including AI developments (agents, safety, consciousness research), political news (Ukraine policy, UK politics, Trump administration), science updates (climate predictions, genetics, bacteriophages), cultural curiosities (Shakespeare superfan plastic surgery, Soviet naming conventions, flag cones), health research (Alzheimer's prevention, shingles vaccine reducing dementia, kidney donation), and philosophical debates (Hume's argument against miracles, the Fatima miracle discussion). The post maintains Scott's characteristic blend of serious analysis and quirky observations, touching on everything from Bach's descendants in Oklahoma to the mystery of why AI still struggles with laundry folding despite mastering protein folding. Shorter summary
Per page:
Showing 1 to 2 of 2 results
Get these search results in an EPUB

Your filters match 2 posts.

Posts to include
Leave empty to keep the defaults. Range cannot exceed 500 posts.
Download now

Generates an EPUB right now and downloads it to your device.

Send to email

Generates an EPUB in the background and emails you a temporary download link.

Your email is not shared with anyone.

Email address

To send to your Kindle, just use this link.