What was the scale of academic research post WW 2 compared to now? I’d imagine our research budgets are a significantly higher fraction of GDP now.
https://en.m.wikipedia.org/wiki/Quaternary_sector_of_the_eco...
I don't see things going back towards the first and second sectors human labor wise, so it would have to all be taken up in the third sector (service sector)? I guess it is plausible with healthcare.