Pascal's wager

Pascal's wager is a philosophical argument advanced by Blaise Pascal (1623–1662), a French mathematician, philosopher, physicist, and theologian.^[1] This argument posits that individuals essentially engage in a life-defining gamble regarding the belief in the existence of God.

Pascal contends that a rational person should adopt a lifestyle consistent with the existence of God and should strive to believe in God. The reasoning for this stance involves the potential outcomes: if God does not exist, the believer incurs only finite losses, potentially sacrificing certain pleasures and luxuries; if God does exist, the believer stands to gain immeasurably, as represented for example by an eternity in Heaven in Abrahamic tradition, while simultaneously avoiding boundless losses associated with an eternity in Hell.^[2]

The first written expression of this wager is in Pascal's Pensées ("Thoughts"), a posthumous compilation of previously unpublished notes.^[3] Pascal's wager is the first formal application of decision theory, existentialism, pragmatism, and voluntarism.^[4]

Critics of the wager question the ability to provide definitive proof of God's existence. The argument from inconsistent revelations highlights the presence of various belief systems, each claiming exclusive access to divine truths. Additionally, the argument from inauthentic belief raises concerns about the genuineness of faith in God if it is motivated solely by potential benefits and losses.