Where Theory Meets Chalk, Dust Flies – The New York Times

Blackboard

Where Theory Meets Chalk, Dust Flies – The New York Times

This is what thought looks like. Ideas, and ideas about ideas. Suppositions and suspicions about relationships among abstract notions — shape, number, geometry, space — emerging through a fog of chalk dust, preferably of the silky Hagoromo chalk, originally from Japan, now made in South Korea. In these diagrams, mysteries are being born and solved.