User blog comment:IHHeroes/Changes going forward after Crisis/@comment-1643005-20200116033017/@comment-27640688-20200116180407

Chances are they won't give us too much more clarity. Also for some reason people think that Earth-Prime is just Earth-1, 38, and BL's all "merged" together. This is crazy given that they are gone, so they couldn't have been merged. But more importantly, who's to say that Nash's Earth wasn't also "merged" with these to create Earth-Prime. Therefore he actually could be native to Earth-Prime. It is kind of useless to think about the prior histories on the other earths because they are gone. We are in a whole new ballpark and the old is gone. We don't even know any histories. We can assume, but that's all we have are assumptions.