Otherwise I have a certain tolerance threshold for boredom - if it crosses that (I know it when I feel it) I'll find another job.
I work only because I like to work. And If I have to work long hours doing things I like, I would not be working hard.
I acknowledge that those I have luck and privilege. Everyone does. But I don't want my biggest accomplishments to be "he was in the right place at the right time."
And I get the fact that, if you're making a product that's never been done before, then MVP releases are partly about market research. Not all software is innovative though, and often you just want to produce a good contender on the market that's already established (say, like the Sublime Editor). In such case, there's no need for the MVP approach.
The fact of the matter is that there's tons of successful products, that are way past their MVP phase, which never stopped sucking from technical standpoint. Heck, I'm watching Netflix on its Windows app right now, and the app has serious issues.
Perhaps by the time your solid, perfect solution is out, society will have moved on. Solutions aren't permanent - we want artificial organs now, but if you take too long to get them into market, by the time you do we'll all have robotic organs already.
Reality moves fast and everything is an MVP, a means to an end.
I know by solid you don't mean perfect though, just trying to give a different perspective.
At a higher level, my answer would be intellectual curiosity.
If you put me in the forest with an axe, I’d just cut down trees non stop.
I think it’s because we humans are beasts of burden - without a task (or more specifically without - mastery, autonomy and purpose) we whither and die, and it’s natural in a healthy population that there’s variance in the desire for work (burden) and I just seem to love it.
It’s nof for everyone, and I don’t look down or resent those who do not work - because I’m doing this by choice. I truly enjoy working to the limits of my capability and pushing myself, not for fame, recognition or ego, but ultimately the desire to help others.
This seems to be the best explanation so far...