The JLA/JSA crossovers that featured the heroes of two Earths coming together, often with a third Earth in the mix, introduced me into the concept of the multiverse. I loved the idea, but DC must have thought it too complicated after a while, for it lead to reboots in an attempt to streamline everything (which, of course, only made things more complicated). These days, the multiverse is back, and is widely understood thanks to shows like
Fringe and
The Flash, plus movies like
Spider-Man: Into the Spider-Verse and news of the Upcoming
Doctor Strange in the Multiverse of Madness. I'm glad the rest of the world has finally caught up to us comic fans!