Mgoblue201
Won't stop picking the right nation
I think that gives Craig far too much credit. His usual debate tactic is to state something that's technically true and then smuggle in several questionable conclusions along with it. For example, Craig is conflating two different things here: that the BGV theorem postulates the existence of a boundary in most inflationary models of the universe, and that Vilenkin (not even Guth, but Vilenkin) believes that the universe probably had a beginning. He almost effortlessly elides this distinction in his argument. One moment he's discussing the BGV theorem. The next it is Vilenkin's own research. The typical viewer will not be able to tell the difference between them. Perhaps Craig himself doesn't even recognize the distinction. Sure, Craig doesn't literally claim that Vilenkin's view is an immutable scientific truth, and he's careful to state only that it's "most likely true", but he clearly gives the impression that the eventual triumph of these ideas (to the point that they are elevated to the overall scientific consensus) is an inexorable fact, and that his opponent is desperately concocting implausible theories to explain it away. That is really far from reality though.Carroll seems to be conflating "certainty" and "knowledge." Obviously, no cosmologist is certain that the Universe had a beginning, but Vilenkin claims that it's likely to be the case. Well, virtually all of what we consider "knowledge" is probabilistic; I am not certain of most of what I believe, but I think it's likely to be the case. Craig is not saying that we shouldn't be open to the possibility that the Standard Model might be falsified, for it might. His argument has only been that modern discoveries are consistent with the second philosophical premise of his argument.
Obviously, the BVG theorem might be falsified, and that's a very open possibility, but he's simply showing that it's currently the Standard Model for a reason; the fact that modern discoveries are seen as likely true by many leading scientists further confirms the reasonability in trusting the second premise of the argument.
I personally couldn't care less about the cosmology; I'm only interested in the philosophical arguments for the veridicality of the premises, for even if the Standard Model were falsified, the strength of the philosophical arguments for the finitude of the past aren't really affected, in my view.