I've been staring at this WAY too long. My brain hurts.
1. This GIF speeds up when you look away from it.
2. What do you see in this photo? Most adults will see two lovers, but children, who have no context for such an image, see nine black dolphins.
3. This carpet pattern makes it look like the floor suddenly drops off.
4. Watch this spinning dancer for awhile. Is she spinning clockwise or counterclockwise? Does she change direction?
5. Stare at the GIF for 30 seconds, then watch Van Gogh's "Starry Night" come ALIVE.
6. These two blocks are the same color.
7. The two orange circles are exactly the same size.
8. Stare at the yellow dots and they'll disappear.
9. These two monsters are actually the same exact size.
10. Where does the man go?