What would you expect to be able to do after 100k? Coding and debugging any codebase in any of the 10 most used languages without internet? God knows if I'll still be alive after 55 years

A lot of time was spent acquiring problem domain knowledge: life insurance, manufacturing, transportation, sales, packet-switching networks, typography, printing, food industry, graphics, GIS, etc.

That definitely broadens your horizon. The more I think about it the more I think that your value as a programmer comes from your knowledge of the domain.