With Dee talking about having 'fought a war' with Superman and everyone else seeming to think Superman is a fictional character and not actually real. I wonder if the world they're in had Crisis do something to Superman's "existence/knowledge" or perhaps some type of magical spell/curse so we're in a Spider-man type situation?
Also Dee being there for at least 15 years certainly adds to a longer time period. Could this world's Superman be the Brandon Routh Superman? The older Superman who has been through all the comics villains and wars? Maybe Lex's writing himself in place of him as the Paragon of Truth and replacing that Superman in the Crisis storyline somehow altered the world in a way Oliver didn't foresee when that Superman and his world was restored?
Also Dee being there for at least 15 years certainly adds to a longer time period. Could this world's Superman be the Brandon Routh Superman? The older Superman who has been through all the comics villains and wars? Maybe Lex's writing himself in place of him as the Paragon of Truth and replacing that Superman in the Crisis storyline somehow altered the world in a way Oliver didn't foresee when that Superman and his world was restored?