Board Thread:Supergirl discussions/@comment-9346948-20181212011845/@comment-37807724-20181213195304

One thing the episode left me wondering about is whether or not Deegan's altered Central City was intentionally modeled after Metropolis. The new architecture was clearly consistent with the little bits of Metropolis we've seen since Supergirl season two, and it makes sense since Deegan was attempting to replicate heroism of Superman/Supergirl, and by extension their world.

The only thing that doesn't add up is how Deegan would have known Superman even comes from Metropolis (which also begs the question of whether or not Metropolis exists on Earth One, and by extension National City), since the Book of Destiny only shows the user's Earth, and he only knows of Supergirl and Superman due to their brief appearances on Earth One. But given that Superman was able to return Earth One to proper form himself despite being native to Earth Thirty-Eight, it's possible that the Book only requires intent, and not so much knowledge.