War, always.

There is no humanity to talk about.

At this point, the vast majority of war movies are garbage, for the simple reason that the military is the organization with the lowest tolerance for error.

What is fault tolerance? It is the degree to which errors can be accommodated.

The job with the highest fault tolerance rate is probably written.

When writing, you can write typos, use the wrong allusions, as long as you are famous, then fans can help you round, it's not a typo, it's intentional!

As for that, eh, it's your own understanding!

As for the common-sense mistakes made, such as penguins living in the North Pole and the like, some are ways to scold those readers who don't open their eyes, and some are fans to escort them.

That's the fault tolerance.

Correspondingly, occupations with low fault tolerance......

For example, you go for treatment and have an open surgery for hemorrhoids, and the surgery is done, and the doctor looks at you and comforts you, and suddenly another doctor comes over and says, "This is my hemorrhoid patient, what are you doing here, oh I'm doing a vasectomy......

At this time, the doctor looks at you at the same time......

You......

That's the story of fault tolerance.

Fault tolerance means it's easy to make up.

A patient who takes the wrong medicine is fine if it is a minor illness, but if it is a major illness, it is fine......

The fault tolerance rate is high, either the foundation is thick, or it can be corrected at any time.

For example, if I only have one pair of shoes, then I don't want to go to the river to jump, because the shoes can get wet easily. I can go to the grass and walk on it, and I can wear it without getting too wet if I'm not careful. I chose to stay indoors with my eyes closed and my shoes unwet.

If I had a few hundred pairs of shoes, I would probably run down the river in them, come on, be happy, anyway, lots of shoes.

By the same token, the army is also a unit with absolutely zero fault tolerance, and it is outrageously low.

Very low meaning.

Why low.

You command a force to stop the enemy, and as long as you hold out for a while, your army will come back safely enough.

Thousands of instructions were told to set up camp in front of the road, and stop the mouth and not fight.

However, that benevolent brother suddenly chose to camp on the mountain pass, thinking that he could win by virtue of his condescending advantage......

That old brother is embarrassed......

You can't say to the enemy who suddenly appears, I'm sorry, I've made a mistake, can you let me regroup and fight again.

That's what it means to be irremediable.

Of course, this also includes another point, the foundation is not thick, if you have a million army and lose 10,000 people, although you are also distressed, but you don't have time to feel distressed, it is not serious to make up for it quickly.

From this point of view, from the outset, the Mission's path of escape meant defeat.

When the Fear Baby in the distance suddenly changed, a huge energy exploded in the Fear Baby.

After seeing that picture, Long Yifei was the first to react, and built a defensive line within a few dozen meters of him.

Although Lu Qingyi reacted slowly, he also had enough protection around him, and he was wrapped in Tsing Yi to protect himself, and he was not afraid of the arrival of the shock wave at all.

Outside, among the rest of the people, there are only a few people who can rely on a certain prop on their bodies to maintain their composure and quietness or that of a few people around them.

Most people are crazy.

Crazy may not be able to say, but everyone panicked and lost control, pushing and squeezing.

Some people even hit and beat other people indiscriminately, as if they had seen a murderer of their father and enemy, and a wife and two wives.

A few days ago, the people who bragged and farted together and said that they were girls in the secret realm together beat each other.

The woman who used to have a girlfriend and sister face now fully shows what a plastic sister flower is.

Hi.

Long Yifei shouted, "Stop!"

The effect is still there.

Fear is a spirit.

It is a kind of electrical discharge reaction in the human brain.

The world seems real to each of us.

The golden sunlight shines through the tender green branches, sprinkles on your body, warm, and digs a spoonful of honey into your mouth, and the sweet taste lingers between your lips, mellow and fragrant. Whether you're awake or not, you're surrounded by sounds almost all the time, from the rumbling of the subway station, to the lazy singing of your headphones, to the chirping of birds in the park, and even in your sleep, you'll still be woken up by the ringing of your phone.

Not only the world outside our body, but also the thousands of feelings that can be experienced by our body and mind under our skin, such as backache, headaches, itchy bags from mosquito bites, handsome body postures on the basketball court, strange reactions to rapid heartbeat and shortness of breath after seeing the person we like, and so on.

Although the world is so colorful, for human beings, the existence of the world depends almost entirely on our brains, and this lump weighs only three pounds of jelly.

The world is full of all kinds of information, and our brains, which are currently recognized as being able to interpret information, have two broad categories.

The first category is physical information, such as the fluctuations of light that we can perceive visually, the fluctuations of sound that we can perceive by hearing, and the pressure and temperature that we can feel by touch, all of which belong to the perception of physical information, and the second category is chemical information, including taste, sweet and sour, and smell.

So, how does the brain perceive this information? Sense and knowledge are actually separated.

In the senses, that is, the sensations, the brain has its own extended system. This process is that a series of specific receptors receive physical or chemical information of a specific range and dimension, and then transcode these physical and chemical signals into neural signals and then transmit them to the brain.

What is the transcoding of physical and chemical signals to neural signals? The employees of the brain, that is, the communication between neurons, use a special language, which we will call for the time being, neuronal language. In the brain, neurons communicate with neuronal language, but the external world is pure physical language or pure chemical language, and if the brain is directly asked to accept these pure physical and chemical languages, the inside of the brain is actually incomprehensible.

Our facial features, in fact, play the role of translators. The eyes, ears, tongue, nose, and our entire body are the translators of our brains. The eyes help the brain translate the longitudinal waves of energy, the ears help the brain translate the transverse waves of energy, the mouth, tongue and nose translate some chemical components that are important to us, and our entire body translates pressure, pressure, temperature, and so on.

Sense is the first step, and then the eyes, ears, nose, tongue, and body are the major translators who have passed the translated neural language into the brain, and then the brain carries out the perceptual knowledge stage, and further interprets and integrates this information. It is in this process that the brain plays a role in shaping our entire world.

The first law is that the human brain's perception of the world has a specific scope and a specific dimension.

You must know that the amount of information in the world is too large, and from a physical point of view alone, there can be changes from small atoms to large changes in celestial bodies. In such a colorful world, does our brain need to perceive all the information in the world? Obviously, it is not necessary and it is impossible. At the beginning of the course, I encouraged people to think from the perspective of a brain designer, if you want the brain to respond to all the information, the requirements for the system are very, very, very high, and the cost is huge, after all, most of the information you perceive may be useless.

Therefore, our brain's perception of the world has a specific scope and a specific dimension. In terms of the perception of light, we humans perceive only a small segment of the entire spectrum, generally from 390 nanometers to 700 nanometers, which is what we call the wavelength band of visible light, and in terms of the perception of sound, we can also perceive a small segment of the frequency spectrum, from a bass of about 20 Hz to a high sound of 20,000 Hz. The range of these works is basically determined by our receptors, beyond which the receptors we currently know, that is, the translators of the brain, our eyes and ears, will not react.

There are also dimensions of information that we hardly perceive. For example, the perception of magnetic fields in birds and the perception of electric fields in electric eels are not currently in our recognized dimensions of human brain perception.

In addition, for the human brain, since there are expanded receptors such as eyes, ears, nose, tongue and body, these receptors also have their own sensitivity. In other words, the intensity and magnitude of the information must reach a certain level for these receptors to feel it and respond.

For example, objects that are too small and too far away, we can't see them clearly even if we squint our eyes, just like bacteria, they exist, but you can't see them even if you open your eyes wide, and we can't hear sounds that are too small, and we can't feel them when we touch them too slightly. This series of sensitivities is called threshold in psychology, and we will not expand on it here.

Therefore, the first law tells us that the human brain's perception of world information has a specific dimension, a specific range, and its own sensitivity.

The second rule is that the world we perceive is reconstructed by our brains.

You know, our eyes, ears, nose, tongue, and body are receptors that transmit the translated information to the brain, and they are transmitted to different basic brain regions of the brain, not to the cortex. These basic brain regions process the information at the primary level and then pass it on to the next brain region. The brain has a lot of work to do in the face of this information.

Let me give you two examples of visual receptors. Our eyes, through the vitreous humor of the eyeball, form a convex lens, the external image to the retina of the fundus, through the convex lens, this image is inverted, upside down, these inverted information will be transmitted all the way to our brain. In other words, the information of the world that our eyes perceive is completely upside down, but the world we see is upright, and this upside-down image is turned around by our brain.

For example, our vision relies on the retina under our eyes to transmit the world we see into our brains. However, this retina is only a curtain behind a convex lens, so the information presented by the retina is two-dimensional, not including the depth of the scene and objects seen. After the brain receives this two-dimensional information, it relies on binocular parallax and a series of clues to make up the third-dimensional information of our vision, allowing us to see the depth and distance of things in front of us, which is also the basic principle of watching 3D movies now.

Therefore, it is precisely because the brain has done a series of work in the perceptual process of perceiving the world that we have restored and reconstructed the world we live in as much as possible.

We said before that the different receptors of the eyes, ears, nose, tongue and body are to feel the information of different dimensions of the world, but many times, our perception of a thing requires several different senses to complete it separately. For example, you take an apple and take a bite. Your eyes see a red spherical object, your hands feel its smooth skin and weight, your ears hear a click as you bite into an apple, and then you taste the sweet and sour taste in your mouth, and your nose smells a fresh fragrance. All of these feelings are done by different senses, and they transmit their own information to the brain almost independently, but you don't feel like several things are happening at the same time.

That's because your brain integrates all of this perceptual information, and it puts together the elephants that different blind people have touched into one complete thing, which is that you take a bite of an apple. As the brain reconstructs the world, you can imagine that it has to extract computationally useful information from a limited amount of input data.

Sometimes, the brain's algorithms are also biased, and these biases are the source of many of our human perceptual illusions. You search the internet for illusion images and a whole bunch of cases pop up. The existence of these illusions reminds everyone that the world we perceive is a world reconstructed by our brains and specially built for us.

The third rule, which I want to be a little more specific, is that when the brain processes perceptual information, it is reversed left and right, with the information on the left going to the right half of the brain, and the information on the right going to the left half of the brain.

The brain is divided into two halves, the left and right, which looks almost symmetrical, and in brain science, we generally refer to the left and right hemispheres as the left and right hemispheres. The slit in the middle that divides the left and right hemispheres of the brain is called the longitudinal fissure of the brain. Hearing the name longitudinal fissure, you should be able to get the message that although the distance between the left and right hemispheres is not far, the gap between the middle hemispheres is very deep. If neurons in the left and right hemispheres want to communicate with each other, there is no other way but to use the only bridge between the two hemispheres. The bridge, called the corpus callosum, is made up of numerous bundles of white matter fibers running through it.