Have you ever thought about whether to have a child? If so, what factors entered into your decision? Was it whether having children would be good for you, your partner and others close to the possible child, such as children you may already have, or perhaps your parents? For most people contemplating reproduction, those are the dominant questions. Some may also think about the desirability of adding to the strain that the nearly seven billion people already here are putting on our planet's environment. But very few ask whether coming into existence is a good thing for the child itself. Most of those who consider that question probably do so because they have some reason to fear that the child's life would be especially difficult for example, if they have a family history of a devastating illness, physical or mental, that cannot yet be detected prenatally.
All this suggests that we think it is wrong to bring into the world a child whose prospects for a happy, healthy life are poor, but we don't usually think the fact that a child is likely to have a happy, healthy life is a reason for bringing the child into existence. This has come to be known among philosophers as "the asymmetry" and it is not easy to justify. But rather than go into the explanations usually proffered and why they fail I want to raise a related problem. How good does life have to be, to make it reasonable to bring a child into the world? Is the standard of life experienced by most people in developed nations today good enough to make this decision unproblematic, in the absence of specific knowledge that the child will have a severe genetic disease or other problem?
If there were to be no future generations, there would be nothing for us to feel to guilty about. Is there anything wrong with this scenario?
The 19th-century German philosopher Arthur Schopenhauer held that even the best life possible for humans is one in which we strive for ends that, once achieved, bring only fleeting satisfaction. New desires then lead us on to further futile struggle and the cycle repeats itself.
Schopenhauer's pessimism has had few defenders over the past two centuries, but one has recently emerged, in the South African philosopher David Benatar, author of a fine book with an arresting title: "Better Never to Have Been: The Harm of Coming into Existence." One of Benatar's arguments trades on something like the asymmetry noted earlier. To bring into existence someone who will suffer is, Benatar argues, to harm that person, but to bring into existence someone who will have a good life is not to benefit him or her. Few of us would think it right to inflict severe suffering on an innocent child, even if that were the only way in which we could bring many other children into the world. Yet everyone will suffer to some extent, and if our species continues to reproduce, we can be sure that some future children will suffer severely. Hence continued reproduction will harm some children severely, and benefit none.
Benatar also argues that human lives are, in general, much less good than we think they are. We spend most of our lives with unfulfilled desires, and the occasional satisfactions that are all most of us can achieve are insufficient to outweigh these prolonged negative states. If we think that this is a tolerable state of affairs it is because we are, in Benatar's view, victims of the illusion of pollyannaism. This illusion may have evolved because it helped our ancestors survive, but it is an illusion nonetheless. If we could see our lives objectively, we would see that they are not something we should inflict on anyone.