From page 429 of Andy Weir's excellent and fun Project Hail Mary:
People nowadays ... they have no idea how good they have it. The past was unrelenting misery for most people. And the further back in time you go, the worse it was.
* There are plenty of terrible things in the world, but for some reason some people bring up inequality to argue against the idea that there has been progress. But it doesn't matter how much money Zuckerberg has. What matters is how much suffering people endure. I would definitely rather live in the unequal United States than Kazakhstan, even though the latter is vastly more "equal."