This an incredibly long video of Youtuber Veritasium discussing and demonstrating the Ames rotating window illusion and how it illustrates how we don’t directly perceive external reality. What does that mean? No clue, but I do have a headache now so I guess I have this video to thank for

This is a video of the winner of the ‘Best Illusion Of The Year’, as created by mathematician Kokichi Sugihara of Meiji University in Tokyo. The 3D Schröder Staircase “looks exactly the same right-side-up and upside-down, its left end looking taller than its right.” It was pretty fun to watch,

This is a photo of Twitter user @aleashuhh’s cat performing a fairly convincing version of the detachable thumb trick — except with an entire leg — thanks to a tucked paw and the fortuitous position of a dog bone. In @aleashuhh’s own words: “Nearly had a heart attack.” Obviously, I

This is a video of a giant LED billboard that wraps around the corner of a building playing a video of a spaceship docking with a very convincing 3D effect. I’m not sure what they’re selling, but I’m buying it. “I think they’re selling giant wrap-around LED billboards.” Cover my

This is a video of the Guinness World Record number of costume change illusions in one minute, with a very respectable 18 different costumes. She could have actually performed more, but the grand finale took fifteen seconds itself AND WAS WORTH EVERY SECOND OF IT. For reference, it took me