Aren't those red watermelons look savory?
This large round fruit with a green rind and bright red flesh, is sweet and juicy, making it the perfect treat to quench your thirst.
You might be thinking I got something wrong or something went wrong while posting the pics, those are blue! But is it for everyone?
Anyone with normal color vision agrees that watermelon is roughly the same color as an apple, blood, strawberries, and the planet Mars. That is, they're all red. But could it be that what you call "red" is someone else's "blue"? Could people's color wheels be rotated concerning one another's?
My mind was blown the day I pondered what if the color that looks red to me looks to another person like the color I recognize as blue? And then further, when I realized I would never be able to find out!
Think about it. We all grow up knowing that a certain frequency of the light wave is red. You have no way of seeing through another person's eyes; and therefore, no way to tell that they are seeing that color differently. And even if they were, they're not going to identify it as blue. It's red. Not just shades and tones or similar colors. All colors. Instead of assuming that everyone sees each color the same way.
Let's take an example, you and I both were together in kindergarten. The teacher says to mix red and blue paints and see what color comes out. You do it. The teacher says it's called purple, just like brinjal. But if the teacher could see what you see, you have mixed yellow with green, got a lime green. But he calls it purple because everyone in the history of the language has called the color of a brinjal purple. In your world, brinjals are lime green. But you do not call it lime green, instead call it purple, because as a baby, your mother showed you brinjal and said purple. Your mother saw the brinjal, which in her mind looked orange. But since the color of brinjal is constant, does not change, and is called purple, she calls it purple. Does she confuse it with orange? No. Because she does not see the color orange the same as you or I or anyone else does. You won't ask why brinjal is called lime green like lime, because you only SEES lime green, but you call it purple because that is the name you know it by. She sees blue. But to her blue is called orange. Oranges are blue to her. Traffic cones are blue to her. Oranges and traffic cones have not changed color.
If my green is your yellow and someone's orange and blue for someone and pink and black, then there is no way to know the difference. It's all one color. It does not change. We all see it differently. We all see it on watermelons and apples and fire trucks and blood. And we all call it red. We saw things and named their color. And everyone learned the same name. And everyone said the sky was blue. But if we all interpret it differently, no one else would know because they don't see what someone else does.
The problem with how we perceive reality is that our bodies have no direct connection to the world around us. It’s as if our conscious "self" is trapped inside a spacesuit or an "Earth suit" relying on our senses to spoon feed it information from the world.
That means our brains never directly touch the objects that our fingers pick up or hear the sound of our lover’s voice. And our senses, as efficient as they are, are hardly scientific instruments.
The reality of colors
Colour is one of our simplest sensations. Even jellyfish detect light and they do not have a brain. And yet to explain lightness, and color more generally, is to explain how and why we see what we do.
The first thing to remember is that color does not exist, at least not in any literal sense. Apples and fire engines are not red, the sky and sea are not blue, and no person is objectively "black" or "white".
What exists is light. Light is real.
The world the brain presents in spectacular colors is colorless. The term color is only meaningful concerning a living organism with sensory cells for light. These sensory cells have developed differently for each species.
So now the question arises, if color is only an illusion, what does everything look like? And the simple answer to this question is, there's no "look like" if there's no color!
When we “see color” what we are doing is remotely sensing aspects of the molecular composition of object surfaces in the environment, but there is quite a bit of neural processing needed to convert detected visible light into what we perceive as surface color.
Ultimately, the purpose of color is to help us distinguish features of the environment that are important for survival, such as sky, ground, plants, food, and such. Hence, the watermelons are colorless!
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