> the hypothetical scenario, better done by robots

How come? How is “going to a book club” going to be “better done by robots”? It is not an activity where there is an objective quality metric. If you enjoyed reading the book, and then enjoyed talking about the book, and had a good time then you did the book club right. Even if we have a robot which reads the book faster, extracts deeper meanings from it, and has a more engaging conversation about it you can still enjoy the act of doing it yourself.

Same with sailing. It is not necessarily the most efficient, fastest, or optimal way to get from here to there. It is on the other hand a challenge to your mind and body and that gives you satisfaction as you do it. Even if robots are faster, better equiped, or safer sailors they are not you. Only you yourself can can create the experience of sailing by yourself.

I do hobby jewelry. I design my pieces and then cast them, polish them, and gift them to friends. I don’t do it because it is cheaper than buying jewelry (it is very much not). I don’t do it because I’m better at it than others. (Very much not.) I do it because i enjoy the long walks while I’m thinking about a new design. I enjoy the challenge of figuring out how I can make a certain piece. Then i enjoy fidgeting with it until it casts just perfect. Then i enjoy polishing it, patinating it, polishing again, engraving, attaching gems. And finally I enjoy very much putting it in a neat little box and then meeting with a friend and gifting it to them. I also enjoy telling the story of how each piece was made, what things worked and what didn’t. It is a bucket of fun! But here is the thing. Even if robots were obviously better at it than me, i wouldn’t care. Wouldn’t change my enjoyment even a bit. How do i know? Because there are already right today othere who are better at it than I will ever be. Professional foundries make jewelry faster and cheaper I can ever hope to. Amazing and legendary jewellers design designs i could never dream of. Excelent crafters share their stories better than I could. So like why am I doing it? Because i enjoy doing it!

> Most people don’t ascribe any deeply satisfying meaning to mere personal enjoyment

I recommend you work on that. That is all I can say.

What people consider deeply satisfying is very much culturally engrained. Our society conditions us to define our own value mostly in terms of how much value we contribute to others, and to treat personal enjoyment as at least somewhat suspect. But this isn't a universal set of values, not even in our own societies historically.

If you really want to get philosophical about it, what's the point of you serving someone else or adding value to society? Society, after all, is other people just like you. If you're trying to make them happy, why wouldn't you want to also make yourself happy? And if it turns out that we're at a technological point where everyone can keep themselves happy without any effort, why shouldn't we collectively just embrace that as a society?