Nils Holtug argues for the Value of Existence View which makes ‘the comparative claim that existence can be better (or worse) for a person than non-existence’ (p.370). Derek Parfit and John Broome argue against this view by stating that it is incoherent. Parfit argues that causing someone to exist cannot be better for a person because the alternative would not have been worse. Broome argues that it can never be true that it is better for a person to exist than to not exist because if she had not existed there would not have been a ‘her’ to have been worse off.

The argument set out by Parfit and Broome is called the Metaphysical Argument and it relies upon two premises. The first premise makes the judgement that it is better (or worse) to exist than never to exist and entails that it is worse (or better) to not exist…

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