80,000 Hours Podcast With Rob Wiblin

It can be tough to get people to truly care about reducing existential risks today. But spare a thought for the longtermist of the 17th century: they were surrounded by people who thought extinction was literally impossible. Today’s guest Tom Moynihan, intellectual historian and author of the book X-Risk: How Humanity Discovered Its Own Extinction, says that until the 18th century, almost everyone — including early atheists — couldn’t imagine that humanity or life could simply disappear because of an act of nature. Links to learn more, summary and full transcript. This is largely because of the prevalence of the ‘principle of plenitude’, which Tom defines as saying: “Whatever can happen will happen. In its stronger form it says whatever can happen will happen reliably and recurrently. And in its strongest form it says that all that can happen is happening right now. And that's the way things will be forever.” This has the implication that if humanity ever disappeared for some reason, then it would h