Oh I had an interesting idea about the Sheeda and their anti-sun.
When Emil Hamilton went insane and became the supervillain Ruin, his justification was that Superman's solar absorption isn't passive, it's active. He's actively draining energy from the sun, shortening its lifespan.
Now the cops he explained this to laughed at him, since you know the sun's lifespan is supposed to be another 5 billion years, so a few years or whatever getting shaved off at the end just didn't seem to important to them.
But Superman has a lifespan well past a human life span in several continuities, Kingdom Come Superman lived long enough to see the formation of the Legion of Superheroes, DC 1 Million Superman survived into the 853rd century.
And that's just Superman. There's already Superboy, Match, and the Kristen Wells Superwoman. Depending on what elements Zoat adds there could be Supergirl, Power girl, Bizarros, the kandorans, Lisa Jennings, Zod, Chris Kent, Kent Shakespeare, Doomsday, daxamites, Kaleb of Hydros, Mon-El, Laurel Kent, Dev-Em, New Krypton as Counter Earth, up to a million clones of Superboy thanks to Cadmus (in DC 1 Million, one of the justice legions is a team comprised entirely of Superboys, and the leader of that group of Superboys is OMAC, which stands for One Millionth Actual Clone), a superman dynasty that can last to the 853rd century, and that's just off the top of my head.
