SCIENCE FICTION UPDATE: Over the weekend, I read Joe Haldeman’s Old Twentieth. I thought it was pretty good — with an interesting “frame” about anti-aging technology, which I’ll write more about later — but as with the last Haldeman novel I read, Camouflage, the ending seemed rather abrupt and a bit unsatisfying. Still, I enjoyed it. I’d rather it had run 50 pages more and wrapped up smoothly, though.