Having dealt with the distant past in Sapiens: A Brief History of Humankind (2011) and with the distant future in Homo Deus: A Brief History of Tomorrow (2016), Harari turns in 21 Lessons his attention to the present.
I really enjoyed this book. Harari is a BIG PICTURE guy who quickly puts things into perspective.
His chapter on God is excellent, for example.
In The New York Times, Bill Gates calls the book “fascinating” and his author “such a stimulating writer that even when I disagreed, I wanted to keep reading and thinking.” For Gates, Harari “has teed up a crucial global conversation about how to take on the problems of the 21st century.”