Just that really.
You have the power to decide whether to be brought into this world or not. If you say no, you will simply vanish from existence. Yes, and life will play out exactly how it already has i.e. there's no opportunity to make different choices etc...
Mine would be a resounding NO. The pointlessness of life actually overwhelms me at times.
I am not depressed, I have a fairly good life/job/family/friends etc. Yet, I can't think of any circumstance that would make me think that there was any point to any of this ...gestures vaguely
So if you had a choice, what would it be?