Introduction
Typically, in discussions of why should one whether or not believe in god, Pascals Wager is offered by the believer as a decisive reason against non-belief. Most of the time, your garden-variety believer is unaware that they are invoking Pascal's Wager when they do. Pascal's Wager does not prove the claim that god exists, rather it posits belief in god is of practical necessity – like the precaution of checking to see the if the road is clear before you cross.
Pascal's Wager has been formally discredited by more
systematical approaches of
philosophy, but nonetheless it doesn't prohibit the unscrupulous or unaware from using it. Ironically, the believer who is wiling to take the bet, places themselves in as equally as a perilous position – if not more so than the unconvinced unbeliever.
Of course, the following analysis is not meant to be complete.
Background
Pascal's Wager was coined after Blaise Pascal,
a 17th century French mathematician, physicist, and religious philosopher of the
Enlightenment. He contributed much to Western science, the philosophy of
science,
and the scientific method with innovations and discoveries in the natural sciences, mathematics, and the invention of projective
geometry and probability theory.
It is from probability theory that Pascal's formulates his famous gambit in the Pensées.
"If you erroneously believe in God,
you lose nothing (assuming that death is the absolute end), whereas if
you correctly believe in God, you gain everything (eternal bliss). But
if you correctly disbelieve in God, you gain nothing (death ends all),
whereas if you erroneously disbelieve in God, you lose everything
(eternal damnation)."
DefinedI'll draft a quick syllogism of the premises.
P1: If you believe in God when you die, you have everything to gain.
P2: If you do not believe in God when you die and you're wrong, you have everything to lose.
P3: If you believe in God and nothing happens when you die - no harm, no shame.
C: Whether or not God exists, belief in God is practical.
Examples
1) If you will believe that Bush and
Osama bin Laden are making apple pie together in the White House, I will give you a briefcase full of money, or I will pull
this trigger and blow your head off.
The following example lifted directly from the blogs
at lcl.
2) "And If I'm wrong, so what. But what if we Christians are right? Sucks
to be you. Especially when you die. Take heed my brother."
Problems, Objections, Perils – A Theological Arms Race
Positive, theistic arguments come in two different orders.
First order arguments are axiomatically epistemological and usually consist of an ontological argument, like design, cosmological, or personal revelation. Quite often, first order arguments make appeals to materialism as reason for belief in non-materialistic supernaturalism.
Second order arguments either posit god axiomatically, or ignore the question altogether. Rather, they turn to belief as a matter of practical necessity. Pascal's Wager is a second order argument.
First and second order arguments are mutually exclusive.
Example 1 takes the carrot and stick approach to belief. Given the circumstances I propose, could you convince yourself, that Bush and Osama are actually making this All American confection together? I know I couldn't. I don't think you could either. (Although, I am quite sure there are those on the far left that probably do. :D )
It still remains to be discerned why neurologically people believe what and why they believe. One thing is certain, beliefs are not entirely subject to will alone. In other words, you can not just "will" yourself to believe.
Despite the science, shouldn't I just have the belief (even if I could will it) regardless out of self preservation?
Moralists and philosophers have long debated over the ethics of a system of rewards and punishments as a way to teach virtue. Do we want people to donate to charity because a law requires them to? While that may be great for society, it says nothing about the inner nature of people doing good by their own volition.
Ideally, it is better for society to have people voluntary act for the betterment of that society, or for themselves.
Example 2 is stated by a Christian with obvious theological underpinnings. You'll notice that example 2 uses the same carrot and stick approach as example 1. Since example 1 is an analogy of example 2, the same criticisms apply. Aditional criticism are relevant because example 2 assumes theism. More assumptions = equal more criticisms = equals greater chance of being wrong.
It goes without saying that the Christian thinks Heaven is the reward, and Hell is the punishment. I doubt that bad breath, hours of Barney the dinosaur, and hangnails is the implication being made.
It's getting late in the day, so I'll offer up only two objections at this time. You can read more here, here, and here.
A) The Theological Arms Race: All I have do is imagine a god, imagine a punishment or reward, and assert that such a belief is in your best interest. Christians and Muslims remain unconvinced of each others rewards and punishment over the divinity of Jesus. If I recall correctly, Mormonism gives you a planet for your afterlife in which you become a God to lord over, or whatever.
The point is, reward or punishment fails to convince each other of the necessity to believe in each others religion. True, they believe in god (Yahweh) but the idiosyncrasies in dogmas are highlighted by lavish punishments or rewards remain unconvincing to each other. Muslims will spend eternity in a Christian lake of fire, and vice-a-versa.
Also, it should be noted that the theological arms race only pushes theism into the abyss of agnosticism. It makes all kinds of belief in all kinds of gods a practical necessity from the dead gods of pagan antiquity, to " new" gods that are "hidden" as science strips the places where god hides today.
B) The Atheist's Wager. What if atheists go to heaven? A quick syllogism: P1: God created non-belief. P2: God rewards non-belief, punishes all theistic belief. P3: Atheists go to heaven, theists go to hell C: It is more practical not to believe in god.
Recall, since Pascal's Wager does not argue for the existence of god and does not try prove that such an entity exists, the atheist if free to ignore the question of gods existence. (He would anyway, the burden of proof is on the believer.) Pascal's Wager is a second order argument that is mutually exclusive to first order arguments.
Look at this way. If god doesn't exist, the atheist will have saved 10% of his income and had many more Sunday's to sleep in. The Christian, loses all of that. Muslim societies so much more. In fact, the atheist according to Pascal's Wager has much more to gain. Once your dead, your dead. No going back and recovering all that money and time spent in church.
Anyway, it seems pretty clear to me that the theist is in even greater jeopardy than the atheist.
Incidentally, let me express a little rancor of at example 2. Perhaps due to my many, many, years of religious education, how dare you threaten me in such a sneering way? It's really petty that instead of attempting to give me your best first order argument, you go ahead and extort my non-existent afterlife.
In Conclusion
Pascal's Wager falls under the weight of it's logical incoherence. Not only is it impossible for one to just will themselves into belief, nor does a system of rewards and punishment make the wager ethical, it also requires the believer to hold belief in countless numbers of god despite religions mutual exclusivity, or to reject belief all together.
The safest bet, according to Pascal's Wager, is to reject theism and embrace atheism.