Your examples of fun seem terribly biased. I notice you didn't mention agriculture, which is probably a more common source of food for most of human history tha

Your examples of fun seem terribly biased. I notice you didn't mention agriculture, which is probably a more common source of food for most of human history than hunting (maybe not, I'm no anthropologist). Like a lot of other things on your list, I imagine that agriculture is "fun" pretty seldomly, but mostly just hard work that is often quite dull and boring. You might get some deep satisfaction out of them, but I get satisfaction out of doing many things that are hard and non-fun at first. Your list feels very cherry-picked. Sorry, I just don't see any way that an objective observer would look at the whole of human existence and conclude that evolution has optimized everything we need to do for survival and reproduction so they're fun!