[ticviking]

I'm not sure that all of that has really gone away.

It's just concentrated into the hands of a very few super specialists, it's much harder to get to their level but their work is much much more important.

[chokma]

True, and if the specialists retire, there may be some parts that no one understands properly anymore.

See: https://www.youtube.com/watch?v=ZSRHeXYDLko / Preventing the Collapse of Civilization / Jonathan Blow

[Jeff_Brown]

Better yet -- the jobs of those specialists got better, and the people who would have done similar work did not end up unemployed, they just do some other kind of programming.