1.1 Goals 1.1.1 I have two main goals in this book. The first is to give an account of the moral significance of merely possible persons persons who, relative to a particular 1 circumstance, or possible future or world, could but in fact never do exist. I call that account Variabilism. My second goal is to use Variabilism to begin to address the problem of abortion. 1.1.2 We ought to do the best we can for people. And we consider this obligation to extend to people who are, relative to a world, existing or future. But does it extend to merely possible people as well? And, if it does, then...