I'm convinced there is some merit to this. So what would be the "Tesla" place for engineers to work at nowadays? Maybe Volocopter, Eviation, Boom Supersonic and the likes - there is plenty.

Also, I'm convinced elevators and escalators are now more often broken than previously and always thought - what if that can be explained with loss of knowledge? Given how old this stuff is. There likely only ever is "innovation" in how to produce it for less cost and it results in mediocre technical "compromises".