I think old AI led to the first AI winter because it had poor mechanisms to deal with uncertainty. However, lots of mechanisms in old expert systems will make a

I think old AI led to the first AI winter because it had poor mechanisms to deal with uncertainty. However, lots of mechanisms in old expert systems will make a comeback once we know how to combine symbolic with neural and probabilistic systems. Just take a look at The Art of Prolog. Many ideas there are getting reused in modern inductive logic and answer-set programming systems.