Superman isn’t that hard to write. But lots of people will tell you he is. After all, how do you write a story that’ll challenge a superhero who’s essentially a god? Who’s overpowered? Who has no match physically? Who, kryptonite aside, is invulnerable? Years ago, DC Comics created the monstrously monstrous Doomsday to answer that call. He and Superman punched it out, Superman died, rejuvenated, and came back – a narrative choice that makes him even stronger. Now you’re saying he can’t die. But Superman’s strength and powers aren’t the problem. People think they are because they’re asking the wrong question. That much is evident in the recent cinematic stabs at…