1) you're right, for every "revolutionary" technology innovation we hear about that actually turns out being important, there are several that don't, but... 2)

1) you're right, for every "revolutionary" technology innovation we hear about that actually turns out being important, there are several that don't, but... 2) automobiles were not, until recently, an area that received a lot of effort at major innovation. Credit electric (and hybrid electric) cars with redefining the amount of change that seemed practical to consider.