If Life came with a "rewind" button, we could insert ourselves into missed opportunities, give voice to unspoken words, make amends for hurtful deeds, keep friendships from falling by the wayside, and even linger to smell the roses. Twenty exceptional writers share their true stories of love, loss, missteps, chance encounters, do-overs, and the musing of "woulda/coulda/shoulda" moments that make us so uniquely human.