Joshua -- I may regret jumping back in here, but you repeatedly reference Hawking, and seemingly out of context. For example:
I'm a "scientific thinker" also. I took several physics courses (up to and including General Relativity and Quantum Mechanics) and read numerous books on the subject. But I don't think that proves anything anyway. There are also numerous scientists who believe that the universe had a definite beginning, most notably Stephen Hawking. He developed a theory that avoided a singularity by inserting what he called "imaginary time". He explained that doing this allowed him to perform certain complicated calculations. But he admits that Imaginary time is just that...imaginary. It's just a mathematical contrivance.
"Only if we could picture the universe in terms of imaginary time would there be no singularities...When one goes back to the real time in which we live, however, there will still appear to be singularities." Hawking in Brief History of Time page 138-139.
Here is an article of Hawking's you previously picked from, where I'll quote from to show a fuller context:
"It seems that Quantum theory, on the other hand, can predict how the universe will begin. Quantum theory introduces a new idea, that of imaginary time. Imaginary time may sound like science fiction, and it has been brought into Doctor Who. But nevertheless, it is a genuine scientific concept. One can picture it in the following way. One can think of ordinary, real, time as a horizontal line. On the left, one has the past, and on the right, the future. But there's another kind of time in the vertical direction. This is called imaginary time, because it is not the kind of time we normally experience. But in a sense, it is just as real, as what we call real time.
The three directions in space, and the one direction of imaginary time, make up what is called a Euclidean space-time. I don't think anyone can picture a four dimensional curve space. But it is not too difficult to visualise a two dimensional surface, like a saddle, or the surface of a football."
That doesn't sound like Hawking is claiming
imaginary time is nothing more than an imaginative contrivance. If you want to claim
something like this is just imagination and philosophy and involves no mathematics, I'd like to see you flesh that out and explain how you come to that conclusion.
Also, if you further read that article, you'll see that Hawking DOES state the singularity exists ... in "real" time. The time we experience now. It doesn't exist in imaginary time, in imaginary time it's just a point from which the universe expands smoothly.
"The conclusion of this lecture is that the universe has not existed forever. Rather, the universe, and time itself, had a beginning in the Big Bang, about 15 billion years ago. The beginning of real time, would have been a singularity, at which the laws of physics would have broken down. Nevertheless, the way the universe began would have been determined by the laws of physics, if the universe satisfied the no boundary condition. This says that in the imaginary time direction, space-time is finite in extent, but doesn't have any boundary or edge. The predictions of the no boundary proposal seem to agree with observation. The no boundary hypothesis also predicts that the universe will eventually collapse again."
If I understand at least the basics correctly, he is stating that there *is* a singularity from which time and the universe (I believe he is basically meaning the observable universe, considering the way he describes it throughout the lecture) came forth from, but when attempting to explain the origins of the entire universe from the context of the Hartle-Hawking state ... that point appears like any other point in time along the imaginary time axis. IOW ... it didn't ALL originate with the singularity, as previously thought. "What came before the singularity ?" is what the Hartle-Hawking state attempts to address. So he is describing two periods of "existence" ... the beginning the universe where things like "beginning of time" apply, and then BEFORE that (before the Planck Epoch), when things like that don't apply and break down (at the singularity) and may become meaningless. I believe when you reference him, you are picking things out of context, and mixing and mashing ideas. I haven't read ABHOT in a long while, however simply referencing that lecture and other online articles, it seems to me you are taking him out of context.
I've already gone through some of these circles with you weeks ago in this thread, so it's not totally fair of me to post and run, but I'm not interested in going round with you again. However if you'd like to address, in detail and with equations that you understand AND can explain, why the very concepts you are referencing are nothing more than imaginative contrivances ... feel free. Seeing as how you pick from those same proposals and concepts to try and support your own statements, which I think you do out of context.
The reason I cannot agree that there is a possibility that God does not exist is because I have the witness of the Holy Spirit. I know that means nothing to you. That's a different subject though, and I'd rather stay on the KCA in this thread.
Then why not just stick with referencing the Holy Spirit ... why go through all of this with the KCA and whatnot ?