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LessWrong is an online forum and community dedicated to improving human reasoning and decision-making. We seek to hold true beliefs and to be effective at accomplishing our goals. Each day, we aim to be less wrong about the world than the day before. A community blog devoted to refining the art of rationality
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How big is the Sun? How could you figure it out? — LessWrong
2+ mon, 3+ day ago (574+ words) I’m a few chapters into Our Mathematical Universe by Max Tegmark. By this point he’s covered the ingenuities of the ancient Greeks, taking my knowled…...
Computational models of first-order theories — LessWrong
2+ mon, 3+ week ago (1393+ words) For simplicity, we will restrict ourselves to models of first-order set theories without equality, and later show how to generalize the approach to arbitrary (recursively enumerable) first-order theories. The language of set theory includes quantifiers ∀ (forall), ∃ (exists), logical connectives ∧ (and),…...
Finding pi and G in Mathland — LessWrong
2+ mon, 3+ week ago (535+ words) This post is a Cunningham's law draft, c. 75% finished. Consider a) waiting until this notice has disappeared to read a more coherent post, or b) criticizing it with a focus on what would be right, not just what is wrong. Science explains physical…...