An answer to: "Why is there something rather than nothing?" and the fine-tuning problem
There are two ways of conceiving of existence. One is to imagine that it started from scarcity and constructed itself upwards. This null-starting-point theory gives rise to the question of why it bothered to climb out of zero in the first place, as opposed to relaxing in a state of nothingness. It also gives rise to the fine-tuning problem, because an existence with zero initial conditions has full license to exist in whatever wild, haphazard and dissolute manner it likes.