Well, some hobbies are fun because you're doing something no one else has done before, or which is challenging to accomplish without a lot of investment in time and growing in personal skill. A lot of hobbies are fun because of the competition and because you get to be at the forefront of something. It's fun because we're all limited in our time and energy and choosing to spend time on something means you can do things that someone else who doesn't spend time on it can't. That feels good.

People who were in the demoscene took joy in learning how to make a computer do things no one had done before and push the hardware to its limits. That's not as meaningful if someone can achieve the same thing by prompting an LLM.

A lot of hobbies are fun because of the human challenge in creating the output and knowing it was only achievable because someone had to take time to create it. Having an LLM accomplish the same thing absolutely devalues the fun in the hobby. Hobbies aren't 100% just about accomplishing something for yourself, even though if you sway to much into doing it for validation or to compete with others it can lead to burnout and lack of enjoyment.