Contribute what you can to help Closer To Truth continue exploring the world's deepest questions without the need for paywalls.   Mathematics is like nothing else. The truths of math seem to be unrelated to anything else—independent of human beings, independent of the universe. The sum of 2 + 3 = 5 cannot not be true; this means that 3 + 2 = 5 would be true even if there were never any human beings, even if there were never a universe! When then, deeply, is mathematics?     Featuring interviews with Max Tegmark, Scott Aaronson, Mark Balaguer, Silvia Jonas, Gregory Benford, and Karen Uhlenbeck.