Scott experiences a demo of a true holographic display this week, and it made Scott realize why people don't really like 3D. It presents a high cognitive load on viewers, where they have to process two separate signals to get a faux 3D experience. It causes headaches and is ultimately uncomfortable. And it doesn't really work. What you really need is a true holographic display that works in 3D space, and he saw that this week. Completely glasses-free. Avalon Holographics uses light field projection to create the holographic image. It's in the early Alpha prototype stage, but it uses 230 million light rays to do it. And it can only get better.