William MacAskill: prediction

Transcript context

…If we’re assessing the well-being of nonhuman animals, should we use preference utilitarianism or hedonistic utilitarianism? Because it will make a big difference. We’re not sure all these animals are happy. They may live lives of terror, but we’re pretty sure they want to stay alive. It makes a huge difference. I think the arguments for hedonism as a theory of well-being, where that saying that well-being consists only in conscious experiences — positive ones contribute positively, negative conscious experiences contribute negatively — I think the arguments for that as a theory of well-being and the theory of what’s good are very strong. It does mean that when you look to the lives of animals in the wild, my view is it’s just very nonobvious whether those lives are good or not. That’s me being a little bit more optimistic than other people that have looked into this, but the optimism is mainly drawing from just lack of — I think we know very little about the conscious lives of fish, let alone invertebrates. But yes, if you have a preference satisfaction view, then I think the world looks a lot better because beings, in general, want to keep living. Actually, when we look to the future as well, I think if you assess how good is the future going to be on a hedonist view, well, maybe it’s quite fragile. You could imagine lots of future ways that civilization could go, where they just don’t care about consciousness at all, or perhaps the beings that will, are not conscious. But probably, beings in the future will have preferences, and those preferences will be being satisfied. So, in general, moral reality looks a lot more rosy, I think, if you’re a preference satisfactionist. But it’s possible, say, in your view, that human beings should spend a lot of their time and resources going around destroying nature, since it might have negative net expected utility value.…

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