Unearthed from a 1,600-year-old Roman-era tomb That's c. 400 AD. Closer to today, than to the time of King Tut...and King Tut was closer to the TFA mummy than to the First Dynasty. Ancient Egypt is really really old. The Great pyramid was 3000 years old at the time of the TFA mummy. The TFA mummy is about equidistant between today and the events of the Iliad and the book was already more than 1000 years old in 400 CE…
Most people kind of merge the kingdoms together, while every kingdom is unique in both the culture and, say, external influence. And the late period is quite long as well. There is a very strong connection between periods, of course. But 2500+ years of ancient egypt is a very long damn time. All of our modern history is, say, 3k years, starting with greeks, early chinese , india and all. But egypt to me is like a sta…
To put that in perspective, consider how long 100 years ago feels.. not in technological terms, but in human perception of time: The USA was founded 250~ years ago. Try to recall your own life from 20, 40, 50 years ago.. it's a literal lifetime. Most people only meet people as far back as their grandparents, just 2 generations back. Great-grandparents and the eras they grew up in are already almost impossible to relate to.. 2500 years is FIFTY such lifetimes!
So in "just" after 500 years the pyramids would already be a mythical unrelatable object to people from 2000 years before us...
I like to think Ancient Egyptians were descendants of the survivors from a Green Sahara and the pyramids were meant to be their post-apocalyptic marker in case the world went to further shit..