Back in 2023, I happened to read Sapiens: A Brief History of Humankind (2011), by Yuval Noah Harari. I ended up not impressed by the book [see Sapiens: The Book] but did find two aspects of it compelling and memorable: the idea of our facility with fiction, and the idea of game-changing human Revolutions.

It is said: ‘Once you have an X hammer, everything becomes an X nail.’ (For whatever value of ‘X’.) Our mental concepts frame our worldview, and I’ve been considering human culture through the lens of these Revolutions.

Here I take a stab at just listing them.

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