Good and funny. Although, you slipped up and used described Lewis's philosophy using the word "actually" in a manner contrary to how Lewis defines it. In his scheme, other worlds are "real" but only ours is "actual".
It's certainly a good mind exercise. It's hard to tell for me if there is a difference between this idea and that of some kind of multiversetheory. I am also not certain if a universe where in a block uranium a neighbouring atom decays but without any consequence for the rest of the universe, can't be considered as part of a set of all world where the differences are so small that they can be bundled somehow. Then perhaps there could be universes that look alike a a certak moment but have a different history. The brother you talk to could have a different world history then you even. Perhaps you could be someone in a universe where you have false memories coming from other you's who have joined with you. So the picture you have from yourself is perhaps fake. Perhaps you are in a universe where you just now "popped" up completely with everything else around you that also has a false memory. So in the end even "I think, therefore I am" becomes a shaky thing ;-)
I'm a fictional realist... well, an agnostic fictional realist. I would say your statement falls under that idea. It's taking this idea and applying human imagination to it.
@@jeffreycgoodman3132 Thanks. I presumed that's what he meant, but I think he's saying 'I could have been a Christian and a teetote' right? Not sure that's even a word.