Regulation, not technology is holding back driverless cars
My dad works in the airplane industry and had an interesting story to tell me that relates to this. (I'm not sure exactly how accurate it is or what the source is, sorry). Apparently, it is illegal for pilots to read while flying. Even if they are heading in a straight line with no one around for miles. This is because one time an pilot wasn't paying attention and due to a series of software failures, the plane turned into a mountain. Interestingly, the plane was tuning at a very exact amount so that the number of Gs remained constant.In any case, this single crash caused regulation to state that computers can never fly planes by themselves. This strikes me as rather unfair. If a single human crashed a plane, it does not make it illegal for humans to fly planes by themselves.Another example is that in London, subways must be driven by a human. Even though driving a subway may be trivial (there is no way to steer), Londoners apparently do not feel comfortable being driven by a non-living thing. They want to be sure that if they die, the driver dies too, adding a level of accountability.It seems that this sort of wide-spread mistrust of machines is driven more by socially normal paranoia than any kind of logic. I for one am rooting for machines to take over all forms of driving. There may be a few mishaps, but it will probably become hundreds of times safer eventually.