>Who is going to be buying the products and services if no-one has money to throw around?

Let me answer your question with another question - if the population pyramid is inverted and birth rate is like 1.1 babbies per 2 adults.. then how is any market going to grow? Seems to me all markets with halve. On top of what you pointed out. Or I suppose it's a happy accident if our workforce halves as our work halves - but still the consumer market has halved. It does make me wonder under what reality one would fathom that the stock market would go up long term.

When AI and robots take care of everything there is more time to make babbies