Simple,
First if all, the title of your thread is "Was there gravity at the dawn of history?" Then you ask "was there gravity at the start of the universe? [...] Was there gravity in the early days of Egypt, as we know it?" From this it seems that you think "the dawn of history", "the start of the universe", and "the early days of Egypt" were all close together in time. From scientific evidence, however, we know that the dawn of history - human history - and ancient Egypt happened just a moment ago, compared to the age of the universe.
The evidence seems to suggest that it is a bit of a mystery how they moved all those now heavy blocks.
It's quite baffling to consider how something can be evidence to support a mystery. If something is a mystery, isn't that because of a total
lack of evidence? Anyway, those blocks were as heavy then as they are now and archaeologists have worked out methods by which the ancient Egyptians could have done it, with the means available to them at the time. We may not know for certain how they actually did it, but it is beyond doubt that it was feasible for them, without recourse to magic, supernatural things or altenative physics.
From a biblical perspective, I see no reason to assume gravity existed as we now know it.
Well, there were of course the walls of Jericho, which came tumbling down, did they not? But that aside, I simply cannot understand what prompts you to even consider this absurd notion that gravity was markedly different then from what it is now. Why on earth would you need this assumption?
Guess it it merely an matter of opinion then?
No, no, no, no, no, no! You've got it all wrong! Look, either gravity was different from what it is now, or it wasn't. But whichever situation was the case, it was a
fact. It was, is, and will always be a
fact. And facts are NEVER, EVER a matter of opinion. Facts are facts, they are true no matter what anyone opines about them.
It amazes me no end how you can think this way. Your mindset really puzzles me beyond comprehension.
"Ignorance more frequently begets confidence than does knowledge: it is those who know little, not those who know much, who so positively assert that this or that problem will never be solved by science." - Charles Darwin.