It is my contention that even fundamental laws of nature deteriorate, evolve, mutate, or change over time. At the end of the Universe, at the point of total entropy, not even laws of nature would exist. How could they? What would it mean for them to exist? What would the word “exist” even mean?

Why do you think the laws of nature - what we know of them - change? We don't have any reason to believe it. The "point of total entropy" sounds like the heat death of the universe, which certainly we do and can discuss and make predictions about.

I am saying that a map can never 1:1 perfectly capture the nature of reality. So, every time we ask “why”, we take one step closer to approximating truth, and we can get infinitely close to it, but we can never reach or attain it, due to the limitations of how our own minds work.

This is somewhat different to what I'm talking about.