LessWrong
A community blog devoted to refining the art of rationality

LessWrong is an online community and blog focused on improving human reasoning and decision-making through discussions of rationality, cognitive biases, and related topics. It serves as a platform where members share essays, debates, and quick takes on philosophy, AI, science, and epistemics. The site has been a foundational hub for the rationalist community since its early days.
Users publish long-form posts and quick takes on rationality-related topics, which are discussed and voted on by the community.
intellectually curious individuals interested in rationality, philosophy, and AI safety
Background.
- Status
- launched
- Business model
- free
Similar projects.
Editorial take on the space this project sits in — momentum signals, adjacent moves, our call on whether the wedge is real. Get pinged when we publish a new read or when the landscape shifts.
Have a take on this space?
Tell us what you’d build differently, where you think the incumbents miss, or what we’ve gotten wrong about this project. Comments + reactions are coming soon.