AI Winter reasons:

Funding is lost due to unmet promises ● Lighthill Report 1973 shuts down funding in UK ● Dreyfus at MIT argues lots of human reasoning is not based on logic rules, involving instinct and unconscious reasoning ○ (No AI researcher will eat lunch with Dreyfus for the next decade) ● Sussman: “using precise language to describe essentially imprecise concepts doesn't make them any more precise.”