the.com/rationalism

The belief that if you think hard enough in a chair, truth arrives without coffee.

means The philosophical view that reason, not sensory experience, is the primary source and test of knowledge.

from From Latin 'ratio' meaning reckoning, calculation, or reason — itself from 'reri,' to think or calculate. The '-ism' got bolted on in the modern era to name a movement, as thinkers like Descartes set reason up as the throne room of truth, with the senses demoted to mere messengers who might be lying.

founding hero
Descartes doubted everything except his own doubting
rival camp
empiricists think chairs need windows and data
big flaw
pure logic still built flat-earth maps for centuries
modern echo
silicon valley rediscovered it and called it first principles
the.com · every word