Share this postInspired Human Development30x30 Challenge Day 21Copy linkFacebookEmailNotesMore30x30 Challenge Day 21Becoming AntifragileJustin Lind and Shane TrotterJan 01, 2017∙ PaidShare this postInspired Human Development30x30 Challenge Day 21Copy linkFacebookEmailNotesMoreShareThis post is for paid subscribersSubscribeAlready a paid subscriber? Sign in