The discussion's been going on for a while and it's been slowing down, so I think it's time to close down the official Q&A session. Henry and Gregory, you're of course still free to check the post and write comments if you want to, but there's no "official" expectation for that. Of course, you're also free to familiarize yourself with the rest of the site, if you think it's interesting enough, but that's entirely up to you. :)
I would like to take the chance to thank you for your excellent answers. There was a lot of interesting stuff in there, and I greatly enjoyed reading both your answers and the discussion that followed. I hope you did not find the initial cross-interrogation by Shulman and Salamon too horrible. :)
If you happen to have any closing statements you'd like to make, replying to this comment is probably the best way of doing it.
Also, special thanks to JenniferRM for arranging this.
Edit: Q&A is now closed. Thanks to everyone for participating, and thanks very much to Harpending and Cochran for their responses.
In response to Kaj's review, Henry Harpending and Gregory Cochran, the authors of the The 10,000 Year Explosion, have agreed to a Q&A session with the Less Wrong community.
If you have any questions for either Harpending or Cochran, please reply to this post with a question addressed to one or both of them. Material for questions might be derived from their blog for the book which includes stories about hunting animals in Africa with an eye towards evolutionary implications (which rose to Jennifer's attention based on Steve Sailer's prior attention).
Please do not kibitz in this Q&A... instead go to the kibitzing area to talk about the Q&A session itself. Eventually, this post will be edited to note that the process has been closed, at which time there should be no new questions.