Rationalsphere

Several of the key concepts that do the rounds in the Rationalsphere these days first arose on SL4 and the Extropians.

I know that Cummings is a fan, because he regularly quotes them. His blogroll includes links to LessWrong, Slate Star Codex and Eliezer Yudkowsky, three of the key parts of the Rationalsphere.

In opposition to mainstream online culture, which believes that certain arguments should be off-limits, the rationalsphere wants to be able to talk about anything. Slate Star Codex — recently renamed Astral Codex Ten — the most prominent rationalist blog, has caused controversy by countenancing free-flowing discussion of topics such as race science and female harassment of men.