## Metadata - Author: [[Lavie Tidhar]] - Full Title: The Circumference of the World - Category: #books ## Highlights - For this is the difference between mathematics and physics: that one concerns itself with all possible permutations, which are infinite. While the other concerns itself only with one, which is unremarkable in many ways, arbitrary like the speed of light: but it is that particular set of numbers that is the universe in which humans, stars, and black holes live.