Share this postPersuasionThis Week at PersuasionCopy linkFacebookEmailNotesMoreThis Week at PersuasionBook talk tomorrow! And a new event on tech and regulation with Kara Swisher and Clay Shirky.Persuasion StaffApr 13, 2021∙ Paid2Share this postPersuasionThis Week at PersuasionCopy linkFacebookEmailNotesMoreShareAn Iranian clergyman searches for the new moon to signal the start of Ramadan, from the ramparts of the Imam Ali observatory. (AP Photo/Vahid Salemi) This post is for paid subscribersSubscribeAlready a paid subscriber? Sign in