(August 26, 2013 at 6:28 pm)discipulus Wrote:(August 26, 2013 at 5:38 pm)Cthulhu Dreaming Wrote: The correct answers to the the two questions above are the only "debate" the KCA requires. It renders the assertions made in the first two premises false (or at least, unknowable).
How so?
Premise 1 - all things that begin to exist have a cause.
This is not known to be true. As an examples, virtual particles come into existence without known cause.
Premise 2 - the universe began to exist.
This is also not known to be true. We know, and likely can know, nothing about the state of the universe prior to 1 unit of Planck time after the big bang. Therefore, we do not know that the universe began to exist, or whether it existed eternally, and began to expand.
The validity of an argument depends on the truth of it's propositions. The truth value of the KCA's premises are currently unknown, ergo, the argument is not valid.
QED