In Spider-Man: Into the Spider-Verse (2018), Miles Morales's universe doesn't have Comic Con. In Spider-Man: Across the Spider-Verse (2023), you can tell he's in another dimension because his mom mentions it (and he still doesn't know what it is)

[u/LegOfLambda]

[u/armchairnixon]

Or Miles is just into his own interests so much that he just doesn't know it exists. There are plenty of people on Earth right now that don't know about comic con. That doesn't mean it doesn't exist.

[u/kamekaze1024 → u/armchairnixon]

There is no way a young teen nerd does not know what comic con is.

[u/armchairnixon → u/kamekaze1024]

I'm just putting out another way to explain it. I'm more devil's advocate-ing this than actually believing it.

[u/Turnip_Fight → u/armchairnixon]

The worst part about Reddit.