Police officers, reporters and other investigators know that you rarely get the same story from any two witnesses. We filter the things we see quite thoroughly, through prior experience and expectations. And then there are times when our eyes just flat out don’t get the job done — or, more precisely, when your brain can’t handle the information accurately.
The next time you’re convinced you know exactly what you saw, remember this:
Chess Board and Shadow Optical Illusion
Go ahead. Check it out. I didn’t believe it either until I used a color-matching tool.