What if your hobby is reading tarot cards?

Fact based knowledge sounds good but could mean anything.

Knowing how stuff is done 100% right and deliberately deciding when something has to be done that way are two different things.

Learn stuff, know stuff, but don't get bogged down by it.

Best example is graphic design: I used to do everything in vector graphics in Inkscape, all parametric in 1:1 ratio to how it's going to be printed/presented. Now I go apeshit in pixel graphics in GIMP and it's so much more useful for a lot of applications, where the goal isn't as clear cut as let's say technical drawings; free flowing artsy graphic stuff so to speak.

I know how I'd do it 100% right, but chose not to as the effort increases exponentially for nobody to notice it if that line is completely straight in the corner of a deep fried A4 print of some artwork.

Not always when the payoff is having fun. Though I personnaly love to learn the theorical basis.

It crumbles as soon as you ask "facts according to whom?"

It's OK and straight forward for simple stuff like classical physics. But as soon as you introduce human subjectivity like goals, meaning, taste, art, fun, enjoyment, etc, it becomes useless. What's the fact based way of sculpting wood with chainsaws and gas torches? And what is payoff? Payoff for whom? In which way? Money, power, influence, efficiency, fame?

Get off the treadmill, not everything needs to be optimal. Most things cannot, by their own nature, ever be optimal. Just sit back and enjoy life for once.

Extra tip: don't start comments in social media with "no", or variations. It's really rude, hostile, and unnecessarily halts constructive discussion. It invites confrontation and it is a fact based way to make you sound like an ass.