How long have we got? My standard answer is 760 years. That’s a median birth-clock Copernican prediction translated into years, using current population estimates. I am surprised at how often the reaction is relief. Seven hundred sixty years means it won’t affect them, their great-grandchildren, or anybody they know.

William Poundstone, The doomsday calculation: How an equation that predicts the future is transforming everything we know about life and the universe, New York, 2019, p. 271