Can do. I live with three of the biggest nerds you'll meet on this planet. They fucking love discussing everything.
So there's this thing called the Reality Gem. Has the ability to...you guessed it, alter reality. The gem was being protected by the Guardians of the Galaxy, but it went all wonky. Started fritzing out and pulling people from different realities to this one. So you'll find some people here from magical worlds, some from non-magical ones. Some from the future, and the past. For example, it was 1976 for me before I arrived here. And there are others who are from centuries further into the future.
We've been told there's a group on Earth who are working to reverse the process to send us home, but it's been a few years and they haven't got it yet. So for as of this moment, you're stuck here. Unless the gem decides to send you back on it's own. That happens occasionally.