The feedback is a lot faster when playing an instrument, you hear if it sounds good or not. The reward is built-in. This is a bit harder for maths/physics once you're past the trivial stuff and most people don't find it rewarding to solve physics/maths problems.
>The feedback is a lot faster when playing an instrument, you hear if it sounds good or not
The feedback is only fast if you're already skilled. It's pretty common for new students to have no proper sense of what sounds good (particularly since it's familiar to them), such that they struggle to figure out what they need to improve. Similar to digital artists flipping the image often to make it easier to identify issues by making the image somewhat unfamiliar to them, forcing their brain to actually look at the image rather than just using its previous idealized mental representation of what the image looked like.
> most people don't find it rewarding to solve physics/maths problems.
Maybe that's the difference between people who are good at it and people who aren't. I found solving math problems (the ones you get in a practice course at a university) hugely rewarding. Finally figuring it out was so satisfying.
Coincidentally, my endeavors playing an instrument were never particularly fruitful.
