Whether it is possible to trust the eyes? As often we tell
: “Of course, I trust it! I saw it own eyes!“... But whether we can be for certain sure of what to us is told by our eyes? Let`s take, for example, a simple question: “What size moon?“ You remember three courageous hunters from a children`s song who hunted in the woods?
Over us full month shone in heaven.
“You look, it is month“, - having yawned, told one. Another told
A third shouted: “Pancake! whether“ someone from us Can make by
more exact measurement of the Moon if we did not read about astronomers who told us about its diameter. What will tell us looking at the Moon or other subject about her or his original sizes? What do we mean when we tell “the original sizes“ or “an original form“, or still something about characteristics of a subject? May we believe what we see in objects, or, on the contrary, that we mean when we say that at a subject certain sizes or a form?
We will return to the Moon. Certainly, you can tell: “Of course, it is very far and therefore it is similar to a plate or to pancake“. But why we know that it it is far from us? Only because we cannot touch it or reach it. However, vision allows us to define appearance of the Moon. We interpret the image which gets on an eye retina, considering information which we possess concerning distance to this subject and by means of which we know whether we can touch or reach it.
It shows that our statements for the sizes of this or that subject - not only result of its reflection on an eye retina just as we react to a prick a needle. When the needle pricks our skin, nerves transfer the message to a spinal cord, and from there the signal arrives to muscles that causes in us reflex reaction.
When we look at something and we speak about the sizes of this subject, process has more difficult character. The brain interprets the image getting on an eye retina from the point of view of all various information which it possesses. For example, the perception - it is not simple registration of details of the outside world at all. The perception assumes selection of those lines which are familiar to us. As a result we not so much believe that we see, and we see what we trust in. Vision is an action not only our eyes, but also our brain which works as the device of selection and sorting of information. He chooses from all images which get to it for recognition only that most correspond to that world which he learned from past experience.
The intellectual climate of the last time favors to talk not only on what we can touch, but also about such objects as, for example, atoms which reality can be shown in only very difficult way, that is in abstractions. However it is very difficult to try to track in details as it is possible to express in visions, in words or paint our ideas of the world which could be created according to our requirements.
Therefore our own world - real for each of us, and we can only explain each our new experience from the point of view of own world. Here what I mean when I say that we see what we trust in.