Board Thread:The Flash discussions/@comment-9346948-20160518004647/@comment-6284741-20160520193040

Me and my best friend have been discussing it for days and we think that the stuff that Cisco saw in his vibes in the last episode (the stuff with the birds) where there was a huge portal is due to the portal we see in the trailer for The Flash finale. We think somehow when Zoom and Barry race their speed is so fast that they accidentally cause a wormhole so large that it merges Earth-2 and Earth-1. I think I recall Kevin Smith saying that something so huge is happening in the finale that it's not just gonna affect The Flash, but also Arrow and Legends of Tomorrow, and that once it happens it can't be undone. Then I think by the time this crossover comes around, the multiverse is already so unstable from the finale merge that it causes Earth-Supergirl to start to do what Earth-2 did.