My question: Expert systems sound remarkably similar to Eve. Why did expert systems not take over the world of programming? I was reading Brook’s No Silver Bullets, and his description of an Expert System sounded remarkably like Eve. I understand that rule based systems failed to fulfill their promise in AI, because it’s hard to encapsulate some type of tasks like object recognition in rules--hence the rise of deep learning--so they fell out of favor. Was that the only reason, or are there others?

expert systems are typically trees, Eve was a graph

Hence, I’m guessing this made queries in Eve data independent and had more flexibility in the paths it can find to arrive at an answer?