Hi boys and girls
It's raining today and I can't go outside and play.
I was trying to figure out an optical illusion sent to me in an email, so of course I went a-geeking on the Internet.
This is the one I received.
Lookee what else I found...
Betcha you can't click on just one...
Optical Illusions and Visual Phenomena
If you have some challenging or just plain fun brain-teaser sites to share, let' see 'em.
This could turn out to be a very good source of mental activity for us FIREees.