Tathagata
Freethinker
I think this logic is still flawed. Once again, there is a logical gap between "it must be something either contingent or non-contingent" and "it was a non-contingent being that could not have failed to exist".
Ok, I see what your concern is, but I merely explained it poorly.
The reason for the existence of the Universe must be upon something either contingent or non-contingent. But if it were merely contingent upon something else that is contingent, then that could go on ad infinitum. So you'd just end up with a whole string of contingent things which the Universe rests upon. Eventually though, there must be a non-contingent explanation for the whole string of contingent entities, thus necessitating a non-contingent, necessary agent.
I was actually just going based on memory. I don't remember where exactly I heard Lane Craig explain it.Could you link to it?