scott michael campbell teaches us why your biggest setback is actually your secret launchpad for success. The former Army Ranger turned world-record endurance athlete went from losing everything in a single day to rebuilding his life by mastering what he calls "The Zero to Hero Equation." His viral TEDx talk reveals that 93% of people give up just 24 hours before their breakthrough—here is how you can stop quitting on yourself before your own miracle happens.