I am sure you can imagine such ways, and so can I. I personally hate working at a job and I don't even have a traditional full-time job anyway. I love doing a lot of things on your list as well and I feel like I have a purpose even without one.... but a lot of people are not so self-directed. And even if people are, a lot of them derive some satisfaction from taking their passion and sharing it with others.

How are you going to share your passion in creating art when most people will be rather indifferent to art due to AI? And will most people even go to universities given that they don't need to go to get a job?

Do you really think that if no one has any job whatsoever, they will all be self-directed enough to find true meaning in life? I could, and maybe you could to, but I really doubt if we are going to be transformed into a planet of traveling, science-teaching, animal caring, old video-game playing happy creatures any time soon.

> How are you going to share your passion in creating art when most people will be rather indifferent to art ~~due to AI~~?

This is already true, regardless of AI. Most hobbies or pursuits people act on have quite a small group (compared to the total population) of people they can share their interest with. It's not like everyone loves art (or any particular interest) right now or cares to talk about it for more than maybe an hour in a month.

People form relationships based on their interests (or at least what they spend a lot of time doing), deliberately or not. I play video games and write software. Most of my friends share at least partial interest with one of those two things. I almost never talk about either of these thing with family, since they don't have interest.

None of my friends are into Muay Thai. This would likely be different from someone who is very into Muay Thai.

I don't have a full answer, and acknowledge that this will be a difficult transition, but humanity had lived for millennia before the modern concept of "a job", and many tribal societies still do, so we know it's possible.

As for "happy", I don't think humans will ever be generally happy, but there's nothing new about that - our neural chemistry keeps us at a state of want as an adaptation; c'est la vie. As I see it, if you want something resembling lasting happiness, you need either drugs, or to relinquish "the self" via deep mindfulness, or to engineer ourselves beyond being human.