Are You Talking About Depth?

A hologram is when you can describe something using only two dimensions, but it has enough inform to describe the full three d volume. Ridi is not always possible to describe a three d object in terms of a two d surface. Like baseball cards, where it looks like the playeris moving as you turn it? And they do that by adding information to the two d surface and giving different images to each eye. But also, i think it's crucial that as your head turns in relation to the twoD surface, you see a very different image.