Do we perceive reality? The checker shadow illusion. (via Why Evolution Is True)
A comprehensive interpretation of a visual illusion.
I recently finished Steve Pinker's The Blank Slate (recommended!), and in one chapter was taken by his discussion about whether human senses perceive a real, external reality or whether that reality is somehow "constructed" socially or by our senses. If you've read the book, you know that Pinker comes down on the "it's real" side (this solution is obvious to all but a moron*)—but not always: what we perceive as "real" is sometimes distorted by o … Read More