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Originally Posted by Mightyboosh
I don't understand the following:
1) " if no contingent thing can ever cause the existence of another contingent thing"
Why not? Can't the second contingent thing be contingent on the first?
The argument is predicated on the Principal of Sufficient Reason, which states that no effect is without its requisite cause. The effect in question isn’t a coming into existence, but rather a continuing to be or continual existence. Likewise, the requisite cause is a continual cause of existence, not a cause of becoming. The example Adler uses is one of parents and a child, whereby the parents are the cause of the child’s coming to be, but not of its continuing to be. For the latter a continual cause of existence is needed, which can’t come from the child lest he’s a necessary being. If that’s wrong and we have a chain of contingent beings, then contingent beings lack an explanation for their continued existence, and that’s that, turtles all the way down.
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2) "And when I make this leap, I think I make it not to a belief in the God of the philosophers but I think the God I believe to exist is the God that is worshipped by the religions of the West"
Is there some justification for this leap that I'm missing or is it just his personal preference and unsupported by the previous logic?
I think the AfC is a rationally acceptable argument with a conclusion consistent with the God of revealed religion. Obviously, the God of Abraham is thought of as more and as doing more than a necessary being who merely exists. So there’s a leap from one to the other, but it’s not a leap wholly without reason since God is of the class of necessary being. Maybe we can bridge it a little by arguing that just as we can only have one genuine “first cause” we can only have one genuine necessary being, or try to deduce some attributes of a necessary being consistent with God, but there’s still a leap.
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I'm not sure that I understand this either but I'm wondering if we're talking at cross purposes. I can't give you the explanation for the universe, but that doesn't mean that I don't think that there is an explanation. It may be that the universe is necessary and that we can't actually know that there was 'nothing' before it, and even if there was, it may have been a nothing from which the universe necessarily sprang into existence. But where do we need a god in all that?
The universe is the totality of contingent beings, so it’s not a candidate for necessary being. Again, that doesn’t preclude the universe from just existing, as contingent beings all the way down or a loop of them, but that doesn’t suffice for an explanation. If either is the case, then the universe exists as a brute fact, inherently lacking an explanation for its existence.