My previous answer notwithstanding, a cat would never reach the ceiling because it'd have hooked its claws into your eye-sockets on the way by, then flipped you over so that you'd land on the floor first, underneath it. It's the first corollary to Schrödinger's cat experiment.I have a technical question for those in the cat contingent. I understand that cats have a built in inertial motion sensor that enables them to land on their feet, even if dropped from an inverted position. What I wonder is whether a cat launched at the ceiling would hit the ceiling feet first or on its back? In other words, is the feet first dynamic a function of gravity or direction of movement? Bonus question: What is best method for launching a cat at the ceiling?