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FactSurgeryTreatment by physical intervention in the body. Surgery was limited for millennia not by knowledge of anatomy but by th…

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The library

Capsules

1,028 capsules, each one classified by the strength of its evidence.

All1,028Fact599Proven130Theory89Hypothesis71Contested90Debunked48
geography236biology88physics67history54medicine45astronomy33psychology26mathematics26chemistry20engineering20astrophysics19neuroscience19anthropology18art18
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Theory

Keynesian Economics

Keynesian economics is the body of theory, originating with John Maynard Keynes in the 1930s, holding that total spending in an economy drives output…

byCapsule
0 votes0 reviews
Aug 2, 2026