Two players leverage quantum rules to achieve a seemingly telepathic connection It only looks like telepathy, but a quantum game harpoons our usual sense of reality. ==================================================================== The Moon isn’t necessarily there if you don’t look at it. So says quantum mechanics, which states that what exists depends on what you measure. Proving reality is like that usually involves the comparison of arcane probabilities, but physicists in China have made the point in a clearer way. They performed a matching game in which two players leverage quantum effects to win every time—which they can’t if measurements merely reveal reality as...