Nuclear deterrence is a crappy strategy. It encourages arms races, and it encourages adversaries to look for asymmetric ways to attack us. That comes as the price of only a nominal - if any - increase to our own security. Meanwhile, nuclear weapons systems and warning systems around the world are deteriorating,… » 1/22/15 7:36pm 1/22/15 7:36pm

Small correction: the mission was a complete success. Dragon is in orbit. The TEST FLIGHT did not result in its "stretch goals," as it were - of total success on the first try - but it was also successful in that it provided necessary data for improving the technology. The fact that there are pieces of the Falcon on… » 1/10/15 10:18am 1/10/15 10:18am

Stardust is also one of those rare cases where the movie was better than the book. Sorry, Gaiman, but some storytelling techniques work better on film than in long form prose. (I'm looking at you, training montage by the end of which the unlikely hero is super competent and in love with the character he previously… » 1/07/15 8:09am 1/07/15 8:09am

There's a science fiction story idea: a world of fast dwindling biodiversity, in which poachers compete to nab the last few organisms of each species, while a few Lex Luthor types who maintain decadent artificial gardens try to outdo each other with the best recreations of the vanished past.... » 11/06/14 11:31am 11/06/14 11:31am