[T01]

God knows!

Sorry--that was something of a trick question! This famous argument is known as Pascal's Wager, and it was formulated by Pascal in defence of his Christian faith. Essentially, Pascal argues that being a Christian is a "good bet". Pascal's Wager has attracted a lot of attention from philosophers ever since, and I certainly couldn't do justice to this debate in a paragraph or two! If you want to learn more about Pascal's Wager and the philosophical responses to it, check the Stanford Encyclopedia of Philosophy.