 (b) Proposal (b) challenges the metaphysical claims about cross-world identity that are inherent in the nonidentity problem. On this proposal, the child p produced as a slave when the couple chooses to enter into the slave child contract and the child q produced as a non-slave when the couple refrains from entering into the contract but still produces a child should not necessarily be considered distinct. p and q may, in other words, be the very same child despite the fact that (due to variations in the timing and manner of their conceptions) they have ended up with distinct genomes. For alternative ways of developing such a de dicto approach to personal identity, see Hare 2007 and Wolf 2009.