I typed a huge message, but then crashboards crashed on me, so this version is a lot more half-*****. Sorry about that.
Thank you
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Your contributive post.
Anytime, sexy. <3
I'd like to see someone prove the cosmological argument is "awful". Especially considering it's unlikely that any of you/us have read Aquinas' metaphysics, which is an intense supplement to the theory.
ok so I haven't read Aquinas' metaphysics (if you could link me somewhere, I'll give it a go. Chances are I won't understand it, but no harm in trying anyway) but whatever:
I've only heard of three different variations of the Cosmological argument, and they are the simple cosmological argument (lol), the Kalam Cosmological Argument and Argument from Contingency.
I'll start with the first one:
The Simple Cosmological Argument usually goes like this:
1. Everything that exists has a cause of its existence
2. The universe exists
therefore:
3. The Universe has a cause of its existence
4. The universe has a cause of its existence, then that cause is God
therefore:
5. God Exists
Okay, so I think someone already said the first major problem with this, which was, "Does God have a cause of his existence?"
This is a problem because, if God did have a cause for his existence, then positing the existence of God in order to explain the existence of the universe wouldn't do anything. Without God, there would be one entity the existence of which we couldn't explain, the Universe. With God, there would be one entity whose existence we couldn't explain, which is God.
So you're just replacing one question with another.
Then, on the other hand, if you say God doesn't have a cause for existence, as in, God is an uncaused being (I don't think uncaused is a word, but you get the idea), you still get similar problems.
To begin with, the fact that you're arguing (using the cosmological argument) that God exists, but that God doesn't have a cause, this doesn't really hold with the first premise:
1. Everything that exists has a cause of its existence
If the first premise isn't true, in that some things don't need a cause, then you could just say that the Universe doesn't need a cause and use the cosmological argument to stop there, instead of going on to the whole magical unicorn thing.
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Okay, so here's the Kalam Cosmological Argument
1. Everything that has a beginning of its existence has a cause of its existence
2. The universe has a beginning of its existence
therefore:
3. The universe has a cause of its existence
4. If the universe has a cause of its existence, then that cause is God
therefore:
5. God Exists
I guess the main thing that makes this different to the original, is that it's dealing with a beginning somewhere in time, and assuming that God existed forever, and therefore doesn't have/need a cause for its existence.
The most important premise (I think) is the second. Mostly because, we can just ask, "How do we know that the universe has a beginning of its existence? Why can't the universe stretch back in time into infinity and always have existed?".
Which then means, anybody trying to argue the Kalam Cosmological Argument has to deal with that. Most people who do, say that the universe can't have an infinite past because the existence of an infinite past entails all a whole tonne of logical absurdities.
So basically:
If an infinite past exists, then if we were to assign a number to each past moment then every real number would be assigned to some moment, right? There would therefore be no unassigned number to be assigned to the present moment as it passes into the past. However, by reassigning the numbers so that the moment number one becomes moment number two, and two becomes three etc. we could free up moment number one and we could just assign that to the present. If the past is infinite, therefore, then there both is and is not a free number to be assigned to the present.
Which is kind of like a paradox, which results from the assumption that the past is infinite shows that it is not possible that that assumption is correct. So, the past cannot be infinited because it is not possible that there be an infinite number of past moments.
Which means that God could not have an infinite past either. Or something like that.
also wikipedia says random stuff about quantum mechanics which doesn't make sense to me, but might to someone else:
http://en.wikipedia.org/wiki/Kalam_cosmological_argument
The final one is the argument from contingency, also called the modal cosmological argument. It's supposed to be something like an argument from the contingency of the universe to the existence of God.
It also draws on the distinction between things that exist necessarily and things that exist contingently. Stuff that is necessary is something that could not possibly have failed to exist. So maybe something like mathematical rules.
Something that's contingent is something that isn't necesarry, or it could have failed to exist. Most things exist (or seem to anyway) contingently. So me, you, your goat, the sun, the earth, planets, SSBB etc.
Ultimately, the argument from contingency rests on the claim that the universe as a whole is contingent, or not necessary. Meaning that it wouldn't have matter whether or not our Universe existed. The argument also suggests that everything around us is contingent; and everything together as a whole is contingent. It might have been the case that nothing ever existed at all, which is logically possible even if it isn't true.
I guess it's because of that, which makes this so hard to argue against (so you're right, it's not an AWFUL argument, but it still isn't good enough). It mostly rests on the thought that the universe exists contingently that its existence is thought to require an explanation (i.e. God). So in other words, if the universe doesn't -need- to exist, why does it exist? People who support this argument say that questions like that always have answers. The existence of stuff that is necessary doesn't require an explanation because their nonexistence is impossible. The existence of anything contingent however, does require an explanation. They might not have existed, so there has to be a reason why they do.
So I guess ultimately, it's up to whether or not you think the universe is contingent (but it's still plausible, at the very least to think that it is).
The only sufficient explanation of the existence of a contingent Universe, this argument suggests, is some necessary being on which its existence rests. So the existence of the contingent universe must rest on something, and if that thing is contingent then it'll rest on something else and so on till you finally get a necessary being. The ultimate explanation of the existence of all things, would therefore be some necessary being. Which we assume to be "God".
Anyway, it can be written like this:
1. Everything that exists contingently has a reason for its existence
2. The universe exists contingently
therefore:
3. The universe has a reason for its existence
4. If the universe has a reason for its existence then that reason is God
therefore:
5. God Exists
I'll post more later, it's getting late and most of what I just posted is probably garbled nonsense anyway, because I haven't reread it.