Share this postThis Week at Persuasionwww.persuasion.communityCopy linkTwitterFacebookEmailThis Week at PersuasionThis Thursday: Niall Ferguson joins us to discuss his new book, Doom.Persuasion StaffMay 11, 20211Share this postThis Week at Persuasionwww.persuasion.communityCopy linkTwitterFacebookEmailA periodical cicada begins to molt from its nymph state in Takoma Park, Maryland. Once soil temperatures reach about 64°F, billions of periodical cicadas will emerge after living underground for 17 years. (Photo by Chip Somodevilla/Getty Images)This post is for paid subscribersSubscribeAlready a paid subscriber? Sign in