Will you still need me, will you still feed me, when I’m 148?

Did a fascinating session today with a US company that will be 200 in 2097, when I would be 148, exploring what the world will be like then.  One exercise involved going back to 1921 and trying to think how one might have foreseen then such subsequent events as the Holocaust, the atomic bombing of Japan, the invention of antibiotics, the Ozone Hole, the Internet, a black President of the USA, and so on. Taxing, but fun.