I don’t (yet) worry about a Terminator or Matrix like scenario where machines take over the world and subjugate humans. But it is useful to remind oneself of the rate of progress that has been taking place. I started programming computers in my early teens which is now almost 35 years ago. During that the first 25 of those years progress towards any kind of artificial intelligence was painfully slow. For instance, as late as 2004 when DARPA ran the first Grand Challenge it looked like we were...