What can two simple exercises tell us about the value of perspective?

First Exercise:
View the aerial photo above in 3D by crossing your eyes slightly until a third white dot appears between the two. The center image that forms will be in 3D! (Don’t worry if you can’t get it to work. My husband has never been able to get these hidden images to cooperate.)
Another quick little experiment:
Just for a moment, close your left eye.
Look around with only your right eye, and see how things look different.
At first, nothing much seems to have changed. Objects in your surroundings still have the same shape, color, and location. Although you can’t see quite as much on your left without turning your head, the image that you see out of your right eye looks remarkably similar to what you saw with both eyes.
If you get up and try to walk around, however, you will soon notice that you are having to try a lot harder to coordinate your movements. Throw a small ball or an ink pen high in the air and try to catch it. You might still manage to catch it, but you weren’t as confidant that you would be successful, were you?
After looking through just your right eye for a while, it strikes you that the image you see with one eye could be perfectly replicated by any flat television screen or photograph. It looks correct, but it is missing information that would more accurately depict your surroundings.
What you see lacks depth. Because it is, essentially, a less accurate picture of the reality you are experiencing, it is easier to make missteps, harder to keep balance, more difficult to judge where you are exactly and where other things are in relation to each other.
Open your eye again. Isn’t that a relief?!











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