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Each day just goes so fast

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I turn around, it's past

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You don't get time to hang a sign on me

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Love me while you can

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Love me while you can

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A lifetime is so short

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A new one can't be bought

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But what you've got means such a lot to me

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We've got all day long

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The optical effects are an illusion of the sight. Each person perceives them in different ways.

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The brain has been programmed to see these waves and expect to follow them.

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Therefore, when the sight is removed, that effect occurs.

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Surely you have seen this dress on the networks.

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It has become very viral because not all people see the dress of the same color.

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White and gold or black and blue?

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The cones of your retina are the ones that allow the vision in colors and the responses of this multicolor dress.

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Humans see objects of a certain color due to the particular functioning of their eye and the interpretation that the brain makes of the information that comes to them.

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Therefore, those people who see it blue and black have high-functioning cones, while those who see it white and gold have less sensitive cones to light.

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The origin of optical illusions can be in a physiological cause, such as a dazzle due to an intense luminous stimulus that leaves the luminous receptors of the retina saturated for a few moments, or on the contrary, it can be a cognitive phenomenon.

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The image we see right now is a cognitive illusion.

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These can be amigable, paradoxical and fictional deformations.

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They can, in some ways, cause more visual confusion than others.

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The brain seems to find it difficult to form an exact image of certain geometric figures.

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As an example, this one.

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Many animals deceive the sight of their enemies, including human hunters.

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They are simply confused with the background.

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Many animals camouflage themselves.

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The colors of numerous insects, for example, hide them from the sight of predators.

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The same thing happens with predators.

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That's why almost all fish have a dark back, so that prey birds don't see them easily.

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Some ingenious artists used the optical effects in their paintings.