I'd put more of the post war explosion on being the only industrialized nation that wasn't actively bombed. Yeah we managed a lot with that brain power but the backbome of that was still incredible position of being essentially untouched economically by the war and having no competition.
Yes, just pointing out that this article implies that Nazi Germany was the reason many scientists moved to the US which isn't the case, many moved when the war was over and they lost.
That’s a massive accomplishment, and kinda proves that a whole bunch of people there were victims of circumstance, a do or die situation.
Never underestimate the ability of a small percentage of malevolent people to upend society.