ooo, oom, I know
Same as you create different character with different personalities to play as actually realities works same way. As people knows only themselves they experience mostly only one reality. Call it "real one". When it is nothing else then projection of any reality meets your own perception. And you don't call reality the Truth out there. You call that that perception of world outside.
And same it works with fantasies. Every book, every game, every single mind of other person (authors f.e.) creates another reality. With rules. As we have physical laws so does fantasy words. Different ones, but the same. So for your character there is another "real" reality. And for player there are two now.
But different properties of different realities doesn't make them any less "real" as they both are in the end just in our minds.
