A smart book told pretty well. The interconnection between the late bronze age empires was interesting–there’s evidence that the world was quite interconnected. Unfortunately, there were a lot of threats in the black space beyond their boundaries… but even that is questionable.
A major focus of this book is rewriting the conventional narrative of a wave of barbarians overrunning these empires. While there’s evidence of new cultures moving into areas where others had been, few of the excavations have revealed a time of war, with arrowheads embedded in walls and the like.
Reading between the lines, it appears that the world was becoming more cosmopolitan at the elite level; Egypt was hiring Minoans to paint their tombs, grain and gold flowed between the related empires.
The book is somewhat oddly structured, due to its anchor points in archaeology. Rather than a chronological or empire specific history, we instead thread forward then shift and restart. It left me with less of a clear view of the “start point” of 1750 b.c.; was it isolated cities rebuilding themselves into empires?
Anyway, it’s very accessible and has parallels to even the world today. The open questions at the end (figuring out what caused everything) are still quite open–in a lot of ways, the answer appears to be “a lot of small things” rather than a barbarian horde. I finished the book with a very different view of the cultural interactions between the ancient empires — there was a lot of peaceful trade and stable borders for 200+ years. It also left we with an idea of just how much more there is to figure out about that collapse.