I simply don't believe there are people who are super-clever. I don't believe in "geniuses". I believe there are people that are cleverer than me, and they can

I simply don't believe there are people who are super-clever. I don't believe in "geniuses". I believe there are people that are cleverer than me, and they can leave me mystified about how they worked out X. But that mystification doesn't require them to have a multiple of my smarts; it only requires them to have 10% more smarts than me. In popular discourse, for example, Einstein is commonly credited as having been a genius. I'm not a physicist; but my understanding is that Einstein's SR and GR were essentially natural conclusions to draw from Maxwell's and Lagrange's equations. IOW, if Einstein had remained a patent reviewer, someone else would have produced those theories. The same belief extends to "great men" of history; I think they emerge from the sea that they swim in, they do not command the tides. So I think that if Hitler had been killed in the WW1 trenches, some other authoritarian would have come along to unite the German people (perhaps not as bad as Hitler; perhaps worse).