They said that about electric cars? They had electric buses before they had petrol ones. In most ways electric is actually simpler. We've just been waiting for the batteries, and Tesla didn't do anything revolutionary there. Tesla saw the batteries were finally there and found a way to hype, market and sell electric cars successfully. That's praiseworthy. The self-driving stuff and over-the-air software updates are also cool. Lots of innovation there. But making electric cars has never been that hard per se.