The fundamental problem is that the implementation doesn't bring any more details than the abstraction. You have characters in the brain that are supposed to be the « internals » of the high-level emotional result and it just turns out that those characters are… emotions. Well thanks but this is useless, I can see the emotions directly by looking at the girl's face and reactions. The movie gets it when Joy gets lost out of the headquarters which therefore creates a depressive state in Riley. Here we have a non-trivial low-level mechanism that creates a high-level emotion. I also just moderately liked the sort of catalog of the different brain places (memories, abstraction, etc). It's like we're on an educative attraction for kids about psychology in Disneyland.
The fundamental problem is that the implementation doesn't bring any more details than the abstraction. You have characters in the brain that are supposed to be the « internals » of the high-level emotional result and it just turns out that those characters are… emotions. Well thanks but this is useless, I can see the emotions directly by looking at the girl's face and reactions. The movie gets it when Joy gets lost out of the headquarters which therefore creates a depressive state in Riley. Here we have a non-trivial low-level mechanism that creates a high-level emotion. I also just moderately liked the sort of catalog of the different brain places (memories, abstraction, etc). It's like we're on an educative attraction for kids about psychology in Disneyland.