Board Thread:Supergirl discussions/@comment-27700324-20190326014251/@comment-27700324-20190326201311

Winn managed to figure out the multiverse reasoning when Barry said "Other Earth"

Lex Luthor is one of Superman's smartest villains of all time. Being able to re-engineer Darkseid's tech into his War Suit. He managed to perform surgery on a Kryptonian, and while not the foremost expert on time travel and the multiverse, he managed to pick up on it rather quickly in the storyline Forever Evil.