Maybe the ballsiest rhetoric about "all that" came out in 1930 - just as the Great Depression was setting in - by Lord John Maynard Keynes. In a short yet profound essay, "The Economic Possibilities For Our Grandchildren," Keynes - a polymath - wrote that the end of the economic game was in sight, and that many wouldn't know what to do with themselves, that working three hours a day is quite enough for most people, and that a few will know how to live a life of leisure - the goal of a true liberal arts education - while others will have a rough go of it.
"I feel sure that with a little more experience we shall use the new-found bounty of nature quite differently from the way in which the rich use it today, and will map out for ourselves a plan of life quite otherwise than theirs." - Keynes
We must know something about where we've been in order to understand where we are, and where we might be going.
Everyone should have been talking and writing about Tech Unemployment after this, but few did. I think most of the population is clueless and in reactionary mode, while the Owner Class would rather the population not know what's going to happen to them. It was right there on your beloved teevee, people!
a still from Fritz Lang's 1927 film Metropolis
A.I. has gotten better and better at pattern recognition/machine learning and crunching Big Data, so a lot of clerical and administrative jobs are on the way out.