"The fourth type? What does it mean? Explain it clearly." Ye Susu shook Tang Sheng's hand and said that he didn't understand. These are unpopular knowledge. Although Ye Susu is a college student, she is not a good friend.

Tang Sheng soon explained that Tang Sheng's super terrifying reading speed made the knowledge in his brain increase wildly every day. There are libraries on the Internet now. Usually, Tang Sheng often reads books in online libraries, and others may not finish reading a book in a week. After all, many books are professional books, and language is also a problem. For example, it is difficult for Chinese people to read professional books in pure English.

Not to mention Chinese people who use Chinese, even if a British man reads professional English books, he may not know all the words, but Tang Sheng did not. He knew almost all the words, let alone read English books. At this time, Tang Sheng learned more than a hundred languages, and all of them were proficient, much more proficient than his mother tongue.

Tang Sheng has read no less than a thousand books on human body evolution. He has read them in any language. Even professional-level books can read hundreds of books in an hour in online libraries, which is terrifying. Others may not have seen clearly what kind of texts are on them when they look at the computer screen. Tang Sheng has already turned the page.

The human brain's ability to accept is very terrifying and very fast, but ordinary people cannot reach the level of using their brains completely, but Tang Sheng is not the case. Tang Sheng kept pressing the car to enter and finish reading a book in about 40 seconds, and remembering it all, this is definitely even more terrifying than superpowers.

Listening to Tang Sheng's explanation, Ye Susu's mouth grew bigger and bigger. It was the first time she had come into contact with these knowledge about human vision. Ordinary people only have three kinds of cones, namely blue, green and red. Some people are color blind and only have two kinds of cones. There are no red cones, so they cannot distinguish the color at all. The red and green look the same.

Scientists speculate that this is related to evolution on the earth. Tens of millions of years ago, the age of dinosaurs fighting for hegemony. The mammals were obviously too small to beat dinosaurs and could not be forced to live underground. However, the rod cells slowly evolved and cones degenerated for a long time.

After the dinosaurs became extinct, mammals came to the ground. Through millions of years of evolution, mammals gradually developed and evolved from two types of cones, allowing various colors to enter the visual nerves of mammals. However, due to some special reasons, perhaps because of the phenomenon of atavism, a very small number of people are still unable to evolve the third red cone, which has become red-green blindness.

On weekdays, when we look at the animal world, we see leopards often squatting on the green grass to hide themselves hunting. There are many antelope eating in the weeds in front. How ridiculous is this in our human eyes. Even if you are a leopard, you have to squat in a place similar to the weeds. There are weeds on one side and green grass on the other side. Isn’t it obvious that you are exposed?

This is not a leopard fool, but a human fool. In the eyes of these animals, there are actually only two types of cones. In the eyes of antelope or leopard, whether it is weed or green, they are actually the same color. We use human eyes to look at the colorful world, and in the eyes of animals, there is another different world.

Using three cones in blue, green, and red, human eyes can identify about one million colors. This is definitely very colorful and can make the world more beautiful in front of people. But there are some people in the world who are undergoing individual evolution.

Through the different evolution of chromosomes and genes, this kind of person not only has three cones, blue, green and red, but also evolved the fourth orange cones. Moreover, the fourth cones evolved into women. For men, they evolved into color blindness, and women have the probability of evolving orange cones.

The three blue, green, red cones can make human eyes identify a million colors. So how many colors can the four blue, green, red and orange cones can make human eyes identify? You will never believe it. It is really scary. The four types of cones can make human eyes recognize about 100 million colors.

In other words, in the eyes of antelope, this world may only have a few simple colors, which are very monotonous, but in the eyes of humans, it is rich and colorful. After all, the resolution of one million colors is far beyond the visual nervous system of those animals. What is the resolution of one million colors that can be distinguished?

How many colors are there in this world? How beautiful is it? How many magical color changes are there? Maybe it can never be seen clearly in the eyes of ordinary people, because ordinary people can only distinguish millions of colors, but when 100 million colors are displayed in front of you, you will find how pitiful you are. This world is far beyond your previous imagination. It is so beautiful, so beautiful, and so colorful.

The world that ordinary people see may not be the real world at all. It is like shooting a movie with a mobile phone with a black and white camera function. It is boring. Now Ye Susu has experienced the amazing resolution of these 100 million colors, which makes her unable to calm down for a long time. Only then did she realize how pitiful she was. Is the resolution of 100 million colors the limit? No, maybe the world she sees now is still not the real world.

Three cones can distinguish one million colors, and four cones can distinguish one million colors, which is a hundred times that of normal people. In the eyes of the four mutated cones, ordinary people are just color blind, but in the eyes of Pipi shrimp, whether it is normal or super-virtual four-color cones, humans are actually color blind, because there are sixteen types of cones in the eyes of Pipi shrimp.

The sixteen cones can distinguish the colors of the sixteen cones. It seems that they can’t count them by counting them with their fingers. Of course, the sixteen cones of Pipi shrimp are not the limit. No one knows the limit. We don’t know what the true colors of this world are, because we are also color blind.
Chapter completed!