Let's go further with it and read "Sapiens: A Brief History of Humankind".

Not to spoil too much but those people working land were cripples as well. Hunter gatherers had perfect life because unlike peasants they could enjoy their life instead of returning to the work in field.

Now think about how hunter gatherers were exposed to risk. What kind of stress they had everyday. Look at current animals how they live. It is some kind of freaking horror.

You an see I am not a fan of Harrari's book because it is "earlier it was so much better" without any real stuff in it.