As a follow up to the question of aging and death in comics, I also wanted to point that superheroes never die. I don't just mean the 'Simon Williams' weekly resurrection', I mean the fact that comic books take religious mythology super-literally so that 'dying' is basically just being transformed into an immortal ghost that dwells in another dimension.

Real death is it - you're done, caput. Even if they could rebuild you, it's not the same mental continuity. That's what happens when machines (like human beings) stop working and fall apart.

The same is not remotely true in comic books. 'Murder' is really not 'murder' in the real world sense, it's 'kidnapping'. From my point of view this lessens the impact of 'death' even more than resurrections and super-tech do. If Uncle Joe is 'up in Heaven', Uncle Joe never died. Take Thanos, for example. The dude never died, not once. He was either immortal in our Universe or immortal living in his girlfriend's basement. So, really, when a Marvel or DC book says someone 'died' they're just misusing the word.