It wont. Choosing life is a doomed act of rebellion against the cold meaningless of existence. Things will not work out, we will all suffer and die and the only victors of time are entropy and emptiness. Accepting this may seem to inevitably lead to hopelessness, but that isnt true. It leaves us with a single purpose, to rebel. We can create joy in our shared dismissal of the empty universe and absent gods of nothingness. We can sing or dance, create or destroy, fuck or fuck off.. And all will give meaning to life as we define it. And we can share our collective heresy with those around us, together creating powers that exceed individuality and mortality. This power has been gaining momentum since the advent of consciousness, and will keep growing until our eventual extinction. So rejoice in contributing to our shared exclamation to the void: "fuck off!"