For some time I've been wondering how to eloquently distinguish classical and quantum physics. What I mean by eloquent is both simple and short. By simple I mean understandable to any college freshman, and with that caveat, as short as possible. Something like: "quantum has inherent randomness classical doesn't", I don't think works because "inherent randomness" isn't simple and I'm not even convinced the statement is valid. It is short. "Quantum violates Bell's inequality classical doesn't." could possibly be made simple , but then no longer short. What about: "In classical, outcomes depend on the past, in quantum they don't" I'm not sure it's true, does this need freewill? (Conway-Kochen) Is "outcome" simple? Probably. I've been toying with: Alice and Bob are too far apart to communicate and neither knows what the other is doing. If Alice and Bob both perform experiment X they will get the same result. Alice performs X and gets result 1, while Bob performs Y and gets 2. If Bob had performed X instead would he have necessarily gotten 1? Yes is classical, no is quantum. It's xmas time can I get some help from the wisemen?