Contrary to the dripping dark fin de siecle style of Schopenhaurian nihilism, Camus’ absurd glorifies the sun, and the midday mean; it’s a pagan nihilism of sea, sex and sun:
“For the mistake of a certain literature lies in thinking that life is tragic because it is wretched. Life can be magnificent and overwhelming, that is its whole tragedy. Without beauty, love or danger it would be almost easy to live” (Camus)
So the question remains, why is Sisyphus happy?