Brad Delong recently published his long-gestating economic history of the long 20th century, Slouching Towards Utopia. If you are reading this blog, you are almost certainly aware of that, and I would guess the probability that you’ve read it (or are reading it) are around 50/50. It has garnered well-deserved high praise from a variety of people. To avoid just repeating what everyone else is saying, let me simply say that it is a necessary book to read if you are at all interested in the su...