Life is short. Nevertheless, billions of people invest incalculable hours making fruitless pleas to nonexistent gods, participating in lavish rituals with no tangible effects, and whittling away tight budgets to support extravagant religious institutions or “spiritual advisors.” Worse still, antiquated religious ideas lead people to impose needless hardships on themselves and others, to rationalize discrimination and other forms of mistreatment, and to hasten environmental destruction because they believe that “the end of the world” is imminent anyway. And for every outward manifestation of wasteful, counterproductive, and even downright harmful activity motivated only by religious belief, there are countless instances that are not nearly so obvious. Religious belief has exacted a toll on people’s emotional well-being as well. Just how much energy has been drained searching for meaning where none is to be found, or been squandered on false hopes and unwarranted fears? How many believers have agonized over the uncertain destination of their loved ones after death? How many have struggled to discern exactly what they did to displease God after falling victim to a natural disaster? How many have been tormented trying to make sense of why God allows terrible things to happen to good people? In the absence of any clear revelation about what God wants us to do, how many have fretted about whether their own actions or beliefs, or those of the people dearest to them, are enough to avoid hellfire? How many of those who have lost their faith in old age have looked back at all the missed opportunities, the roads not taken, the life that could have been, had they not been born in a religious household, or had they abandoned religion in their younger days!