Oxford philosopher Toby Ord spent the early part of his career spearheading the effective altruism movement, founding Giving What We Can, and focusing his attention primarily on issue areas like global public health and extreme poverty. Ord’s new book The Precipice is about something entirely different: the biggest existential risks to the future of humanity. In it, he predicts that humanity has approximately a 1 in 6 chance of going completely extinct by the end of the 21st century.

Wait! Stay with me!

The coronavirus pandemic is a reminder that tail risk is real. We always knew a zoological respiratory virus could become a global pandemic. But, collectively, we didn’t want to think about it, and so we didn’t. The result is the reality we live in now. 

But for all the current moment’s horror, there are worse risks than coronavirus out there. One silver lining of the current crisis might be that it gets us to take them seriously, and avert them before they become unstoppable. That’s what Ord’s book is about, and it is, in a strange way, a comfort. 

This, then, is a conversation about the risks that threaten humanity’s future, and what we can do about them. It’s a conversation about thinking in probabilities, about the ethics of taking future human lives seriously, about how we weigh the risks we don’t yet understand. And it’s a conversation, too, about something I’ve been dwelling on watching President Trump choose to ratchet up tensions with China amidst a pandemic: Is Trump himself an existential risk, or at least an existential risk factor?

Book recommendations:

Reasons and Persons by Derek Parfit

Doing Good Better by William MacAskill

Maps of Time by David Christian and William H. McNeill

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