There is no inherent meaning in information; it is what you do with information that matters. We don't see the world the way it is. We see it in a way that is useful to us. We are defined by our environment and our interaction with that environment. Only through uncertainty is there potential for understanding. A lot of what we see is what we have seen before. It is what we think we should be seeing, not what we actually are seeing.
Some of the effective speaking techniques include giving lots of examples to support his ideas; using lots of different mediums to show those examples, like video and audio; talking even during the thirty seconds he was having people look at the red/green optical illusion; and having audience participation in his demonstrations.
His presentation is informal. Most of the time his tone is not one of him lecturing but one of him having a conversation with the audience. He doesn’t use his PowerPoint as his sole organizer of his speaking; however, he does make use of it for most all of his points.
What matters from this presentation is that our perception of the world is relative; not everything we see is fact. In fact (☺), most of what we see is what we have seen and for this reason think we should see. To me personally, this matters because it makes me more aware of what is really true, and that that is not necessarily what I see. This concept should be taught in education, because it would give students new perspectives on what is true about their perception. Finally, the world needs this information because people need to be able to make wise decisions even if things are not always what they appear to be.
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