you know what's even better that greg egan books? greg egans physics notes explaining the universe of his books: https://www.gregegan.net/ORTHOGONAL/01/DualPyth

you know what's even better that greg egan books? greg egans physics notes explaining the universe of his books: https://www.gregegan.net/ORTHOGONAL/01/DualPythagorean.html https://www.gregegan.net/ORTHOGONAL/01/DualPythagorean.html