Shulou(Shulou.com)11/24 Report--

This article comes from the official account of Wechat: SF Chinese (ID:kexuejiaodian), translated by Li Shijie

Have you seen Avatar 2?

Do you still remember the plot of the first Avatar?

Why does James Cameron (James Cameron) seem to devote the rest of his life to these two films?

The question discussed in this article is related to the theme of the film: how likely is it to transfer one person's consciousness to another body? Guillaume Thierry, a professor of neuroscience at the University of Bangor in the UK, thinks it is unlikely.

The Pixabay brain is not a computer. "there is a popular view that the brain is like a computer, but this is not the case," Thierry said.

The human brain is not made up of data that can be transmitted between different brains.

The brain is living tissue, but we don't know how it works and how it works. If I want to transfer my memory to the machine, I need to know what the memory is made of, but in fact, no one knows what the memory is right now.

To explain the complexity of the brain, Thierry referred to a study by the Allen Institute of brain Science (Allen Institute For brain Science): scientists drew a neural map of a small piece of mouse brain, a small piece of brain tissue only 1 cubic millimeter in volume. " This is a very small piece of brain tissue, "he said," but it is made up of more than 100000 nerve cells, and more than 1 billion nerve connections are established between these nerve cells. If you scale up to the size of the human brain, the number of nerve cells and connections will be unimaginable. "

The data obtained from the 1 cubic millimeter mouse brain takes up about 2 million GB of storage space.

This is one of Thierry's biggest concerns: if the human brain is fully decoded, no hard drive can hold the resulting data. "this is far more than the capacity of an ordinary computer." He added.

No artificial brain can simulate the computing speed of the real brain.

The processing of the computer is purely linear, while the processing of the brain is completely parallel. Nerve cells in the brain can communicate with each other anytime, anywhere, and deal with events that have just happened in real time. A computer can never run like a brain. "

Consciousness and body are inseparable. Thierry believes that the idea of the first Avatar is more feasible: using the brain to receive sensory input from another body.

"if you have a powerful system that can read sensory information from other bodies in some way and send them to your brain in real time," he said, "then your brain can also pass through this system. Send instructions to other bodies, so you can control other bodies."

But Thierry says that even if we can control other bodies through a magical system, it is impossible to permanently transfer consciousness to Namei, like Jake Sully, the main character of Avatar, because the result of this transfer is that we become "delirious".

"you may be able to read sensory information from other bodies to some extent, but the biggest problem is that other functions of the brain cannot be transferred and cannot be transferred. We don't have access."

The reason why people want to transfer their consciousness to other bodies is obvious. "Don't you want to be a blue warrior and soar on a magical planet on a spotted creature (a fictional creature in Avatar)?" Thierry said. But this wish is based on the wrong view that consciousness and body can be separated.

"most scientists believe that consciousness arises from the communication between nerve cells," Thierry said. In the brain, once the composition of nerve cells and their connections to each other change, so does a person's state of consciousness. If you look at what a person looks like when he is drunk, you will find that his performance is completely different from his usual behavior. Why is this? Because alcohol affects the chemical state of the brain and interferes with the communication between nerve cells. "

In short, the conclusion is:

You can't transfer your consciousness to another body. And you don't have a Namei avatar.

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