I think you explain it to complicated. All readers here on Medium are not scientists.
I just read the story about with the Einstein wise words before I read your story. I like those words… and they came into my mind over and over again when I read your story.
I like to explain things easy. As a reader I like flow, especially when I find stories like your by “accident”.
I am talking about you should write your story easier for everyone to understand, just like Einstein said. If this is your field it is my opinion you explain it to complicated. Make it easier to read without all the scientific phrases. I am sure most people — me too — have to check in Webster or elsewhere to understand some words, since the content is in the outskirt of our interest.
Our brains are not that complicated! I am sure you know…
By the way you forgot to mention the Chinese civilization which was well developed long before the Bronze Age collapse in “our” world.