wow...i didn't know all stuff about comics. Everything I know about comics I learned from "MallRats"...Superman wouldn't really be able to pro-create, unless it was with Wonder Woman
Yeah, unfortuately, that was a "Post-Crisis" innovation. Before the epic 1985 series "Crisis on Infinite Earths" Superman COULD pro-create with an Earth woman and had a legacy that lasted on into the 30th Century, at least. But it happily looks like at lot of those innovations are coming undone.