I have a theory about Outkast and what prompted Andre 3000 to morph from the just-like-everyone-else Atlanta rapper he was on the group's first album ...
Outkast invented Instagram filters.
... into the God/religion/alien/conspiracy theory-obsessed weirdo he turned into on their sophomore album.
Sweet corset, bro.
It's a matter of talent. On their first album, the disparity between the pair in terms of ability was noticeable to the point of being uncomfortable. It was clear that, of the two, the guy who called himself "Dre" at the time was the star of the show. Not that Big Boi was bad; he was just a lot less good than his partner and had a way sillier name (still true).