During Beau Lotto's Ted Talk, Optical Illusions Show How we See, he discusses how the eyes detect light differently than how it actually is. His purpose for having the speech is to teach about that subject. He explains how what we see isn’t just based off of the color of an object but the illumination given off by it as well as other objects around it. So, our sensory information is essentially meaningless. We can see a physically identical object, but if it is interrupted by another form of illumination, how we see can be completely changed. The tone of his speech is kind of a joking method but to the point. What I mean by this is that he will introduce a portion of his speech and instead of giving only information, he gives/shows examples