You and your wife/girlfriend want to have a baby. Unfortunately, NASA has determined that in 10 months, an asteroid will hit the Earth and everyone will die. There's no way to deflect, destroy, or otherwise counteract the asteroid. Everyone's gonna die in 10 months. Would you consider it murder to conceive and give birth to a child, knowing that soon after it's born it would be killed, along with everyone else?
[spoiler]I'm not talking about murder in the legal sense. This is more of a question of whether this would be right or wrong. This isn't a circuitous abortion debate. This is just a thought experiment.[/spoiler]
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Either way, the child is never going to be capable of conscious thought or have any comprehension of the world around them. The difference between the two situations from the child's perspective is too small to bother worrying about. I can't see how the mother would want to spend the last 10 months of her life growing a child which is going to be summarily vapourised along with herself.