system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: why are things more funny as a kid?
gpt
Things stop being funny when you've seen them too often - and this isn't just true of specific funny things, but entire classes of funny things. Seeing someone get a custard pie in the face isn't all that funny when you've seen it a lot.

When you're young, everything is new, so it has a lot more chance to be funny.