Physics and Philosophy - Thoughts on the Implications of Quantum Mechanics, and Other Matters #10ii

10. On Quantum Mechanics:
ii. Quantum physics differs from classical physics. The energy levels and distances are on an atomic scale. The action of observing introduces uncontrollable and irreparable disturbances in the system being observed. If these disturbances are negligible, then the system in question will behave in a manner that is familiar to human experience. Quantum motion is far weirder.