@reverse.the.spin: The acorn isn’t changing direction. Your brain is 👀🌰 This spinning acorn is a kineticon: a motion illusion made from moving points and lines with almost no depth clues. Your brain has to guess which side is coming toward you. When that guess flips, the whole acorn can suddenly seem to reverse. Focus on the cap or one edge. Imagine it moving toward you, then away. Blink, look back, and see if your brain switches the spin 🌀 The motion is on the screen, but the direction is in your mind 🧠 #kineticon #reversethespin #opticalillusion #rotation #braintrick