Isn't the current quest in quantum mechanics (to find a grand unified theory) to find an abstraction that does leak? At the moment it's too self contained and doesn't explain anything about the macroscopic world.
In any case, having a basic understanding of the next level up (the electron) has proved quite useful to my career, otherwise I wouldn't know how turning things off then on again affects the machines I'm working with.
In any case, having a basic understanding of the next level up (the electron) has proved quite useful to my career, otherwise I wouldn't know how turning things off then on again affects the machines I'm working with.