Re: Stuff you like to believe happened in Nolan's series
I like to think that Joker was taken into federal custody after TDK. It makes more sense than him being the only patient in Arkham. I like to think Gotham is a level of Limbo and all the characters are facets of Cobb's personality at different stages in his life.
"I never asked for this crown. Gold is cold and heavy on the head, but so long as I am the king, I have a duty … If I must sacrifice one child to the flames to save a million from the dark … Sacrifice … is never easy, Davos. Or it is no true sacrifice." - Stannis Baratheon