rationalsphere
rationalsphere noun: an online community of individuals, centered around the forum LessWrong and the blog Slate Star Codex, who discuss philosophy, psychology, and futurism through the lens of Bayesianism and rationality.
Noun
rationalsphere (plural not attested)
- An online community of individuals, centered around the forum LessWrong and the blog Slate Star Codex, who discuss philosophy, psychology, and futurism through the lens of Bayesianism and rationality.
- Several of the key concepts that do the rounds in the Rationalsphere these days first arose on SL4 and the Extropians.2019 June 13, Tom Chivers, The Rationalist's Guide to the Galaxy, Orion, →ISBN
- 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.2019 August 30, Tom Chivers, “Dominic Cummings is no chicken”, in UnHerd
Origin of rationalsphere
rational + or rationalist + -sphere (“designating a particular realm or interest of a group of people, object, etc”)
Questions about rationalsphere
- What does rationalsphere mean?
- Rationalsphere means an online community of individuals, centered around the forum LessWrong and the blog Slate Star Codex, who discuss philosophy, psychology, and futurism through the lens of Bayesianism and rationality.
- What part of speech is rationalsphere?
- Rationalsphere is a noun.
Words near rationalsphere in the dictionary
Source and license
Adapted from Wiktionary: rationalsphere (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
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Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Rho9998-rationalsphere.wav.
Cite this entry: “rationalsphere.” Word.ws, https://word.ws/rationalsphere. Based on Wiktionary, CC BY-SA 4.0.