How We Believe_ Science and the Search for God - Michael Shermer [39]
The forty-year-old medium’s message cuts to the core of most people’s deepest fear and loftiest desire, as he told the New York Times: “When a reunion between the living and the dead takes place it may be the first time the living understand that death has not robbed them of the love they once experienced with family and friends on the earth plane. With the knowledge of no death, they are free to live life.” No one has explained the attraction of this message better than Alexander Pope did over two and a half centuries ago, in his 1733 Essay on Man:
Hope springs eternal in the human breast;
Man never Is, but always To be blest.
The soul, uneasy, and confin’d from home,
Rests and expatiates in a life to come.
By itself, however, this does not explain precisely how our Belief Engine drives us to be compelled to believe such claims. Why are we so willing to suspend disbelief when it comes to the afterlife?
Gambling on the Afterlife
By way of analogy, consider the gambling games of Las Vegas. Gaming is big business, as anyone can see driving down the ever-burgeoning neon-glaring strip. In fact, gambling is the best bet in business, far superior to the stock market, as long as you are the house. With only a tiny advantage on any given game, and heaps of customers playing lots of rounds, the house is guaranteed to win. For the roulette wheel, for example, with eighteen red slots, eighteen black slots, and two green slots (zero and double zero), the take is only 5.26 percent. That is, by betting either black or red, you will win eighteen out of thirty-eight times, or 47.37 percent, whereas the house will win twenty out of thirty-eight times, or 52.63 percent. If you placed one hundred $1.00 bets, you would be out $5.26, on average. This may not sound like a lot, but cumulatively over time, with millions of gamblers betting billions of dollars every year, the house take is significant. Other games are better for gamblers. For straight bets in craps, the house take is a mere 1.4 percent; for blackjack, with the most liberal rules and optimal (non-card-counting) player strategies, the house earns just under 1 percent. These are the best games to play if you are a gambler (that is to say, you will lose more slowly). With other games it is downhill for the gambler. The take for some slot machines, for example, is a staggering 25 percent. That is, you are losing 25 cents on the dollar, or, the house wins 62.5 percent and you win 37.5 percent of the time. Yet people still play. Why?
As B. F. Skinner showed in rats, pigeons, and humans, organisms do not need steady reinforcement to continue pressing a bar, pecking a plate, or pulling a one-armed bandit (slot machine). Intermittent reinforcement will do just as well, and sometimes even better, at eliciting the desired behavior. A “Variable Ratio Schedule” of reinforcement turns out to be the best for gambling games, where