follow the green dot... (optical illusion)

[Darren Dirt]

optical illusions are fun -- I like messing with the ol' noggin'...


stare at the "+" in the middle soon you'll see a green "dot" magically appear

(found it on this insane page of animated GIFs)

[Thorin]

That is really cool...  Interesting that it's the switch from pink back to grey that makes the green appear.

[Darren Dirt]

What's really cool is that it only takes a second or two (many similar illusions you have to really stare a long time) and BONUS, if you look to the side AFTER seeing Mr. Green Dot, you'll see that all the pink dot have been burnt "green" into your retinas (i.e. you'll see an echo image of the outer circle of dots, but green instead of pink).

Messing with sensory perception: free, harmless fun