I only have as much detail as I have because I've been curious about all the little details myself. That's actually been one of my favorite things about my church, is that there are a lot of detailed answers to questions I've had.

I'm not sure what kind of historical evidence might disprove the Book of Mormon. That's a good point. I'll have to think about it.

Also, for the record the paradoxes aren't mine. They're famous philosophical questions. I only mentioned them because they seemed applicable.

With regards to entropy and the heat death of the universe, I think it goes pretty well with the scientific law of conservation of mass which basically says that matter can be neither created nor destroyed. (Not counting turning into energy, since it isn't really destroyed, just changed into a different form) This much isn't doctrine or anything and I don't know that we have any kind of stance on it, but I personally suspect that God can either overcome entropy as necessary (e.g. cause it to become less chaotic and more ordered against it's nature), or that entropy means nothing to him because he isn't limited to time as we are. (e.g. there may be a beginning and end to the universe in time, but if time has no meaning to God, it wouldn't matter)

With regards to God directly commanding people to kill, I'm pretty sure he does in Deuteronomy 20:15-17 but it definitely isn't the normal way of things since it's also one of the Ten Commandments not to.
But if you'd rather use a different example. One of the Ten Commandments is to keep the Sabbath Day holy, but Christ gives a good example in Luke 14:5 of a time when it would make sense to make an exception.

I don't think having preset exceptions to laws would count as God changing. But that would definitely be an opinion on my part.

I've been enjoying our conversation too! Have a nice evening yourself!