2nd hand story:
There was a speech by another FI person who told Pete he wanted to chill like him, but also wanted to change the world like Elon Musk. Pete, according to this guy, said, "be like Elon Musk for an hour a week," or something like that.
You don't get to Mars on your own at 1 hour a week. You don't generally get anything done at 1 hour a week. You either go more-than-neck-deep, or you abandon the project, or you fund someone else doing it.
I had a science experiment I wanted to pursue (I'm not anything close to a scientist), and my wife and I were talking over a full retirement to a LCOLA, and setting up my own lab in our home. As we talked it through, I thought maybe I'd also teach business at a nearby college, and, of course, I'd be writing, and then I realized that if I wasn't willing to at least consider giving up everything, I'd be wasting my time and money while uprooting everyone when we've finally settled into our current community.