Evolution

Darwinian Theory (Or 'fact' as the educated classes like to call it), of course, predicted the evolution of our own species in biological terms. Little did he realize that, intellectually we are also evolving away from the mysticism, cultism and exploitation represented by organized religion.

"The report shows, for example, that every religion is losing and gaining members, but that the Roman Catholic Church “has experienced the greatest net losses as a result of affiliation changes.” The survey also indicates that the group that had the greatest net gain was the unaffiliated. More than 16 percent of American adults say they are not part of any organized faith, which makes the unaffiliated the country’s fourth largest “religious group.”"
New York Times - 02/25/08

The fastest growing "religious group" - "unaffiliated", teh funny!