Earlier quoted context omitted.
I've heard this book cited many times, and people saying that the "bad" things we see are just the news cycles and very temporary, and in general we're better off (e.g. "The richest person has the same iPhone as you and uses the same kind of toilet"). Sure, some things are "objectively" better, like lower child mortality and so on. But happiness is so subjective. It's entirely possible that when we were hunter gather…
Go without a toilet, a refrigerator, or clean water for a year and tell me how happy you are… I think this idealization of “hunter gatherer” society is absolutely insane. It’s like arguing the moon is made of cheese. People were likely not happy being hungry, scared, and afraid most of fucking the time.
For all we know when people start to travel cross continent in minutes, press a button and have instant steak printed, we cannot assume they will be happier than everyone alive today. They will have their own set of issues to weight them down. If nothing, boredom.