There’s no way to understand the interpretation of quantum mechanics without also being able to solve quantum mechanics problems – to understand the theory, you need to be able to use it (and vice versa). If you don’t heed this advice, you’ll fall prey to all sorts of nonsense that’s floating around out there.” (John Baez – How to Learn Math and Physics)
Therefore, I must confess that I do not know Quantum Mechanics (have I ever claimed so?) emmm … QM fascinates me and I would like it much if I were a physicist.