[gyom]

The illustrations are fun and the explanations are skillful.

The core idea is more of a starting point. It's reminding us that we shouldn't expect things to be "fair", but it's avoiding the whole topic about how fairness sometimes shouldn't always matter when you want to be happy.

It's not really meant to discuss a recipe for happiness, but at the same time it features people being frustrated about perceived unfairness, which makes them unhappy.