Speed is not the problem. Highways are going to be the first sections of self-driving roads. Because they are simple predictable environments, which requires less hardware, where accidents have high costs, liability issues are small, trips are long and where computers offers an advantage over the human mind in terms of endurance. This is something we will have in 3-5 years.<p>To tackle all the other problems to truly have a self-driving cars is going to take much longer. Not at least since there will be decreasing incentive to solve these much harder problems in a cost effective way.