Here's his thought provoking answer to his own question
Did technology really think we would all be socialists by now? Silly goose. Is that why it made those promises it couldn't keep?
Read the rest. It's an interesting idea.
He speculates about the influence of technology in the development of capitalism (and war). Technology makes it cheaper to produce with fewer workers but that savings disappears into a capitalists pocket. Our ancestors seemed to think that technology would encourage social equality. A lot of technogeeks today would agree. So far it doesn't seem to be working. Instead technology encourages capitalism. Which encourages inequality. Which encourages war. Which encourages technology...
I never realized that my lost leisure time has been out making war.