This article contains spoilers for "Superman & Lois."

Secret identities are vital and key to superhero stories. It's what helps keep the illusion that anyone could be a hero and that anyone could be under the mask. And yet, there are quite a few superheroes without a secret identity. The Marvel Cinematic Universe essentially did away with the concept from the very start when Tony Stark revealed his identity to the world. In the DC universe, at least in the comics, Wonder Woman lives without a secret identity, as does Aquaman (mostly because he is openly the king of Atlantis in addition to a superhero), and even Elongated Man revealed his identity essentially the moment he got powers.

But there are heroes whose identities are so essential to the character that they are sacred and untouched (mostly) like Batman, Spider-Man, and Superman. Even when these characters have their identities revealed, it...