Mark Changizi explains optical illusions

Why can’t the most complex object in the universe, the human brain, render simple optical illusions? Our brains have really only evolved to cope with natural stimuli. At TEDYouth, Mark Changizi explains how the brain approaches optical illusions and why they work…

Interestingly, there was a discussion earlier about how optical illusions don’t always work for some people in some parts of the world as discussed in Adam Alter’s new book Drunk Tank Pink: And Other Unexpected Forces That Shape How We Think, Feel, and Behave.