I don't feel much inspired by the metaphor of garbage collection and AI.

Garbage collection makes thinking about memory irrelevant 99% of the time. Time saved with AI is spent figuring out what the AI did.

The garbage collector rarely makes itself a problem. AI almost always makes itself a problem.

Developers can go years without thinking about memory if they aren't in a complex environment. AI can't go a day without screwing up.

Garbage collection is very predictable. AI isn't.