User blog comment:OfficialBrandonF/Could Darkseid be a villain for the 4-way crossover event?/@comment-27673963-20170416012457/@comment-24152851-20170418015901

Who knows what they would do if they didn't have these rules? Arrowverse might not even exist if that was the case and we'd still be having Batman TV shows.

Well Clark may have imagined what Krypton was like, js.