Is Quantum Intuition Possible?
Physical intuition starts developing early, long before we ever encounter Newton’s laws on a blackboard. “Babies have a few skeletal principles that are built in to the brain and help them reason about and predict how objects should act and interact in the world,” says Kristy vanMarle, an infant cognition researcher at the University of Missouri. They understand, for instance, that objects can’t pass through each other, a notion that’s at odds with a quantum effect called tunneling, which allows objects to slip through barriers that, in the classic world, would be impenetrable. Presented with demonstrations in which objects appear to materialize inside closed boxes and pass through solid walls, babies consistently stare longer at these “magic” shows than they do at demos in which boxes act like boxes. Psychologists Susan Hespos (now at Northwestern University) and Renee Baillargeon (University of Illinois) found that this physical intuition kicks in as early as two and a half months, and vanMarle and her colleagues think that it is probably present from birth.