The boulder always rolls back down. Camus says that's not the tragedy you think it is.
Sophia Sisyphus Reflection
Sisyphus was condemned to push a boulder up a mountain forever, watching it roll back down every time he reached the top. Camus took this as the perfect image of the absurd — a task with no ultimate point, repeated regardless — and concluded that Sisyphus, fully aware of his fate and choosing to push anyway, should be imagined happy. The question isn't whether your own repeated, unresolved effort has a final payoff. It's whether you can find something worth affirming in it anyway. That's worth writing through, not just reading about.