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There’s no way for us to know exactly what happened some 13.8 billion years ago, when our universe burst onto the scene.

This really depends on the Creationism you go for. If you're like me, Catholic, you believe in Old Earth Creationism and the whole question of evolution and all that is moot. If you're a believer in Young Earth Creationism, well, then the universe wasn't created 13.8 billion years ago, so that's false anyway. The world was created on October 23rd, 4004 BC, at 9:30 AM - assuming you use the Ussher Chronology.

not only that…but what is 13.8 billion years. Einstein, and modern quantum physics demonstrates that time is a physical property, and has not been constant over the life of our universe. In fact, the multiple indicates that as time has changed speeds….14 billion years might equal about 6 thousand years today.

Eh, no, that's not right. It's not that time has not been constant. It's that the faster you go, the more time dilates for the object/person going faster. Time dilation doesn't mean that time changes speeds. It's all relative to the observer.

Since the scope of science is confined to our laws of physics, it can’t begin to even deal with that. Using science to prove or disprove God is like trying to use a screwdriver as a hammer. It’s the wrong tool for the job.

That's the best description I've heard. You're exactly right. Science is the How. God is the Why. They are non-overlapping magisteria.

It could therefore be postulated that the speed of light over the course of time has changed.

That would be C-Decay Theory, and would solve the starlight problem in YEC. The problem is, since the development of electronic digital counters and pulsed lasers, it has been possible to measure the speed of light in the laboratory with great precision. Even if the speed of light reached the proximity of its final value decades ago, there would be enough residual decay as the value reached its limit asymptotically for our modern apparatus to detect. There is none, which means that for the theory to work you have to toss out the exponential decay which governs nearly every phenomenon in the universe in favor of trigonometric functions that only work by brute force curve-fitting. Since it doesn't satisfy Occam's Razor, that's why C-Decay Theory has been abandoned. There are better (meaning, simpler and more accurate) scientific explanations. If C-Decay DID exist, there would be some pretty far-reaching implications. It would not simply mean that "the speed of light has changed over time". It would also mean that the very fabric of reality would be subject to change in the temporal dimension. For example, that would imply that energy is not conserved, thus negating the 2nd Law of Thermodynamics, which changes how entropy works completely.

It would not simply mean that "the speed of light has changed over time". It would also mean that the very fabric of reality would be subject to change in the temporal dimension. For example, that would imply that energy is not conserved, thus negating the 2nd Law of Thermodynamics, which changes how entropy works completely.

I'm not smart enough to debate the C-decay relevant to astronomical measurements. I'll take your word for it based on your knowledge of science (which is likely more than mine). However, IF there are any dents to be had, then I encourage you to consider my postulation in post #52.

It is important to note, that if the true constant regarding the laws of physics in the universe is that it is exactly uniform and consistent throughout, but variable over time, then what we see and study in space is a mere snapshot of what Laws are today regardless of how long light has been traveling. Indeed, what we observe is the basis of the Laws that we have accepted. We've only been observing space for a few thousand years. To us, Laws of Physics would seem eternal and constant. This might suggest that the very light we see, that is billions of years old, has changed with the evolution of accepted Laws of Physics. Even subtle changes over billions of years could dramatically affect theories regarding the origins of our universe. Note that quantum physics is already theorizing that at some level, our accepted Laws of Physics do not govern (multidimensional particles for instance). Disclaimer: I am an engineer, not a physicist. I learn, enjoy and follow science (physics) but cannot claim to "study" it. My reasoning is logic based on what I think I know. The ideas and theories fascinate me. I do believe God put the whole show in action and the details are simply "the how".