There is a touching video of Marvin Minsky here. Steven Levy’s wonderful book on how some of this revolution took place is compelling reading (as in the Model Railroad club). You have to wonder how and why so much fundamental and successful (‘an important discovery every few days’) work was done in such a short period of time, with so little money. And across the pond, and elsewhere the biological revolution that dominated the second half of the 20th century was being laid out with even less resource. Not so much ‘events, dear boy, events’ but ‘ideas, dear kids, ideas’.