system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are emotions like anger, sadness, excitement or boredom so immediately apparent while happiness is not?

If you're angry, sad, or even bored, it's something you can recognize fairly easily. Why isn't happiness as apparent? Rather, why is it so similar to a feeling of "not bad" as opposed to its own unique thing? Is a happy emotion closer to our 'resting state' than most others?
gpt
Depends on how you define happiness.

If you define happiness as "not bad" or just "relaxed and content" then it is just a nice comfortable state of being to aim for, it is sustainable and comforting. But that is a state, rather than the emotion itself. The emotion characteristic of happiness is joy, and joy is very noticeable. You'll smile, laugh, maybe even move about when excited with joy. It is very noticeable, it just isnt sustainable.