Less Wrong is a community blog devoted to refining the art of human rationality:

Over the last decades, new experiments have changed science’s picture of the way we think – the ways we succeed or fail to obtain the truth, or fulfill our goals.  The heuristics and biases program, in cognitive psychology, has exposed dozens of major flaws in human reasoning.  Social psychology shows how we succeed or fail in groups.  Probability theory and decision theory have given us new mathematical foundations for understanding minds.

Less Wrong is devoted to refining the art of human rationality – the art of thinking.  The new math and science deserves to be applied to our daily lives, and heard in our public voices.

A beta-test version of the site is online here.