system
Given the following post, respond as if you're commenting on Reddit:
human
[Mystery Dungeon] Where did Mewtwo come from?

If humans don't exist/are extinct in this world, where did Mewtwo come from?  
Mind you, Super Mystery Dungeon explicitly states that the main characters came from the world of humans. While I may be taking it a bit literally, does that mean that this is a separate universe with no humans?
gpt
World of humans may mean that it is just a world that primarily has humans. After all, there was a human natively in an offshoot future timeline...

Also, the humans seem to know about what the pokemon are... perhaps Mewtwo could have also come from the human world?