WHAT WE OWE THE FUTURE

Scottish ethicist and Oxford professor MacAskill urges that those alive today consider the lingering effects of their carbon-footprint–deepening actions.

“Future people count. There could be a lot of them. We can make their lives go better,” writes the author in a combination of thought experiment and reader-friendly white paper. His future is “big,” extending millions of years out, which is perhaps touchingly optimistic given the long-standing habit of mammalian species to disappear after a million years or so. The bigness of that future is what has prompted MacAskill to propound “longtermism,” with its challenging guiding idea that we owe it to people we will never see and whom we may or may not have propagated (the choice for childlessness figures in the argument) to improve their chances of survival. The author identifies a daunting array of modern threats. One is climate change; another is the ever present threat of nuclear war, heightened after the Russian invasion of Ukraine. Optimistic again, MacAskill suggests that there are ways we can choose peace and avert the worst effects of climate change by “decarbonizing,” which he calls a “proof of concept for longtermism…against which other potential actions can be compared.” There are other, less obvious threats that worry the author. For example, what might happen if the artificial intelligence of the present is programmed in such a way that it promotes “bad-value lock-in” and thereby makes inevitable a perpetual fascist world government in the future? Throughout, MacAskill brings expansive ideas. He examines the process of history-shifting “value change” by considering changing attitudes toward human slavery. On a more personal scale, he advocates vegetarianism, and he observes that not having children may mean an absence of kids with good values who “can be change makers who help create a better future.”

With something to ponder on every page, a bracing exhortation to do right by the people of centuries to come.