Most people can be often wrong. As for EVs, I don't think there's much development to be done, save for batteries - the powertrains are dead simple, and we have

Most people can be often wrong. As for EVs, I don't think there's much development to be done, save for batteries - the powertrains are dead simple, and we have been building electric motors for longer than ICEs. And the thing with battery technologies is that there is quite a bit of stagnation as there has been very little improvement in power density - higher densities, and safer chemistries that can do more cycles are still the subjects of research, and it's still a question of 'if' and not 'when' that a given promising technology (like solid state batteries) will pan out. There are multiple solutions - plug-in hybrids, which Toyota makes can almost match EVs for emissions for a lot of people. I, for example commute about 30km per day, and take longer trips only every 2 weeks or so, and well made ICE engines have such a low emission for long trips that combined with the rarity of use, make their environmental impact negligible.