This is pseudo-scientific BS. But must admit, named right factors, just they linked into BS scheme. What really happen, first, in 1920s, 90% of population work

This is pseudo-scientific BS. But must admit, named right factors, just they linked into BS scheme. What really happen, first, in 1920s, 90% of population working in agriculture, mostly without any tech, and things slowly moving to current state, only 5% in agriculture, and more than 60% in services. Transition from agriculture to modern, was slow and biased, so first transit most active people (entrepreneurs) and preferred smart people, because bright perspectives, etc, but we see from modern side, there was not computers on agriculture side, so our vision biased. Also important, US was one of first countries made transition, started in 1920s, and for example, China started transition in 1978, HALF HUNDRED years later. What world looks like for modern underdog, yes, we long time see many bright persons, who make things right, or even more, in some cases looks like friendly aliens with incredible technologies. And even, when in West, transition mostly complete in 1980s-1990s, in Asia it was just started in late 1970s, and peak was in 2000s. What this mean, even when smart people sources in US agriculture already exhausted, appear smart immigrants from Asia, for some time feed with fresh minds already stagnating system. Than, transition complete in current state, agriculture exhausted, grow ends, and now appear generation of ordinary people. To return old good times, we need some Great frontier, like Mars colonization, so again, will be spend huge resources on huge investments and again, smart people will got great salaries and will have motivation to work there.