Physicists just built a quantum lie detector. It works | ScienceDaily Quantum "Magic" is what researchers now claim a quantum computer requires, in order to be faster than a classical computer. The big question is, what is a lie and what is the truth, which is always context dependent from the observer's point of view. Note this same approach they're using can also be applied to measure how classical physics emerge from Indeterminacy, and how the quantum observer effect works.
