There's never been a better time to go into math

Grant Sanderson on the future of mathematics, addressed to students who wonder whether it is still worth entering a field that machines are learning to do. He starts from how mathematics actually works, then takes three machines in turn: one that proves, one that conjectures, and one that builds theory, asking what each would leave for people. He also takes the hard case, an AI better at all of it, and still argues that this is the best time to begin.