A friend just mailed this to me – I hadn’t ever seen one quite this good. Look at the dot and move your head towards/away from the screen.
I like illusions for a lot of different reasons. They are reminders that things are almost never as they seem, and of the ultimate fallibility of the senses. I see hobos as people who have uncovered some of the illusions that prevent many of us from taking our freedom. Most of these illusions are ideas – the idea that life is over if you lose your job, or that money and possessions are essential.
Find more optical illusions at www.optillusions.com.