The key feature is that there's a mechanism that limits supply. Other than that, value only exists because enough people agree that it has value. Fiat currency is exactly the same in this regard.
I think your questions indicate that you don't have sufficient understanding of how "ordinary" money works. It's just a promise of being able to exchange it for goods & services in the future, and its value hinges on people trusting that promise.
Long cutscenes that don't let you save or pause when anything comes up that forces you to leave the keyboard or just focus elsewhere.
"Control" was the worst wrt this (or was it Quantum Break? Maybe both). I was just about to go to bed when it showed me a "cutscene" that went on for more than 30 minutes. Turned out later that you could actually go back to watch it again afterwards, but there was no indication of that at the time.
I keep my git clone in Dropbox so I can revert accidental delete and always have the most recent code on all devices without having to remember to commit and push. If it requires manual execution I wouldn't really consider it a proper backup solution.
If you're into doing these kinds of projects I wholeheartedly recommend Sebastian Lague's YouTube channel. Each video is a new project and it is presented in an accessible and inspiring way.
It kinda makes sense at the back of the car, less so at the front