A reader passes on the cartoon above, from the excellent website XKCD. I had to laugh because last year I stood next to my space-geek son Matthew at the Jet Propulsion Laboratory, listening to him explain to actual rocket scientists how everything he learned about orbital mechanics — and he knows a lot more than you would expect a 13 year old to know — he learned from the Kerbal Space Program.  No kidding, KSP is so very much more than just a game. I’ve seen Matthew learn a stunning amount from becoming ace at KSP, which is as difficult as it is fun. That cartoon is funny because there’s a lot of truth in it.