SM Stirling’s Theater of Spies is coming out in May: it’s the second book in a what is rapidly becoming dieselpunk alternate history series with Teddy Roosevelt running a rather larger USA in World War I. I’m reading it chapter by chapter now on Stirling’s site, and I find the little hints of “they should watch out for these social trends, two decades or so from now” to be quite of interest. It’s not really surprising to see, if you know anything about early 20th Century American history; but if you don’t, well, the world was a lot different then, and not just in the ways that you might think.