Superman has survived because his central problem was never whether he could lift the impossible weight. It was whether a person with almost unlimited power could remain gentle, accountable and close to ordinary life.
Created by writer Jerry Siegel and artist Joe Shuster, Superman first appeared in Action Comics #1 in 1938. He helped popularize the superhero form: the costume, the secret identity, the extraordinary ability directed toward public good. But conventions alone do not explain nearly nine decades of attention.
His deeper appeal is a reversal of the usual fantasy of power. Superman can dominate, yet chooses to serve. He can stand above humanity, yet chooses to live among people as Clark Kent. He arrives from a world that could not be saved, yet does not make loss an excuse for bitterness.
That is where hope enters. Hope is not his confidence that he will always win. It is his refusal to let suffering decide what kind of person he becomes.