"Do these characters have the emotional memory of the 800 things that have happened to them? ... I don’t really know the answer to that.” They do have a histor

"Do these characters have the emotional memory of the 800 things that have happened to them? ... I don’t really know the answer to that.” They do have a history, because in the Grimes episode he talks about things Homer did in other episodes, and the characters themselves sometimes make reference to things in the past. But it must be a fun writing challenge to take characters that don't age but somehow seem to rack up a lifetime of experience.