I'm surprised by the mathematician's critiques of this book. I have a PhD in math and I read this book about 10 years ago now. I loved it. I'm sure there are some inaccuracies, but he gets the overall story correct. There's enough math in the book to be engaging for someone mathematically trained. There's also a lot more history than if you read a math book that just has proofs. And the book is entertaining in the way that DFW's books usually are. As a former mathematician I highly recommend.