What is this rectangle doing? Oscillating or Rotating? Comment what you see! I see both. Scroll down for the answer It's rotating. Scroll down more for how I made it. This isn't a rectangle. It's a trapezoid. I made the trapezoid rotate, and move back and forth slightly to increase the chances of you seeing it oscillate. For more on the illusion, scroll down. https://www.youtube.com/watch?v=dBap_Lp-0oc