What's a "Moral Compass Cricket Thingy"?

[Moonface]

Reading your comment about moving the hand really fast along the neck when doing lead guitar made me think of how I always wonder how nobody just grinds their fingers into pure pain when doing stuff on a guitar at fast speeds and don't appear to be using anything like a plectrum or whatever. Unless I just somehow always miss them holding it but whenever I've watched a live performance that has a moment where the guitar player gets focused on by the camera it always looks like they're just doing it bare handed.

I feel like every time I ask a music question to you that seems like it'll be simple it never turns out to be the case and there's way more to it than I was aware of. So is there anything about music that actually is simple?