Quote:
Originally Posted by NotReady
This is an enormous overreach. TAG (Transcendental Arguement for the Existence of God) is a very strong argument, hardly obviously false. In a sense, all the theistic proofs tend in the same direction - that meaning is only possible if God exists. For instance, the moral argument says 1) If God doesn't exist objective morality doesn't exist 2) Objective morality exists 3) Therefore God exists. The substance of this argument can be stated "Objective morality only makes sense if God exists" - similar to TAG "The universe only makes sense if God exists". As Piper said, Shakespeare is no different from a barking dog, unless God exists.
Yes, I'm willing to stand by my claim that TAG arguments are obviously unsound. In my opinion only the ignorant or the strongly biased accept it as sound. While I think that rational and reasonable people can accept the cosmological, ontological, and (some variants of) design arguments as sound, I don't think this is so with the TAG argument.
Dealing more directly with what you say here, I don't agree at all that all the theistic proofs tend in the direction of saying that meaning is only possible if God exists. That is obviously false. For instance, what does that have to do with the ontological argument? Or the cosmological argument? Or the argument from religious experience?
The problem with the TAG argument is clear. It is enough to defeat it to show that morality, or reason, or knowledge is possible in a world without a God. You don't have to show that in the
actual world morality, reason, or knowledge exist, but only that in some possible world without God they exist. That is trivial enough to demonstrate. For instance, suppose that Plato's theory of the Forms were correct. If so, then morality, reason, and knowledge would all exist and be justified. However, the theory of the Forms
doesn't require the existence of a God. This immediately shows the premises of the TAG argument to be false unless its proponents can show, not just that Platonism is false, but that it is
necessarily false, that it couldn't even possibly be true. The same thing goes for Aristotelianism, for Kantianism, for Hegel, for pragmatism, etc. None of those philosophies require the existence of a God (let alone the Christian God), but they all, if correct justify morality, reason, or knowledge. The proponents of TAG have utterly failed to show that
any of these philosophies are necessarily false. In fact, most of them seem to just ignore these alternatives. So I don't see why I should take this argument at all seriously.