Is 'Brain-Computer Interface + Metaverse' really a Wang Zhuang combination?

The ultimate vision of the Metaverse is to build an electronic world that can be on an equal footing with reality, and to move everything that can be done in reality to the electronic world to complete the so-called ultimate vision. There is currently no spectrum, why? It's very simple, because our brains still have to live offline, let's not talk about eating, drinking and lhasa for the time being. At least an excellent metaverse needs to make us live more comfortable than the real world. For example, according to the current plan, it may be VR, our future There are a lot of VR in the center, and we also have a dedicated VR game area, which is probably the original form, but VR cannot be worn 24 hours a day, so there is a saying that the metaverse plus brain-computer interface It is the Wang fried combination.

Today, I will introduce to you what the brain-computer interface is all about. A little friend said, isn't it the Matrix? A tube is inserted in the back of the head, the body is soaked in the nutrient solution, and you can do whatever you want, yes or no. The so-called brain-computer interface is actually very simple, that is, there is something that can connect the input and output of the brain to the computer. What the computer gives, the brain directly understands, and what the brain gives the computer also directly understands. Humans have been dealing with computers for so many years. The human brain and the computer have always relied on intermediary dialogue. The mouse can express the computer, and the output of the computer must be given to the eyes through the monitor to let the brain know. The direct task of the brain-computer interface is to prevent the middlemen from making the difference. There are actually many kinds of things. For example, we can call the current caused by monitoring neuron activity as EEG, or we can not detect the current. Ecog, or utahArray if you plug it straight into your head, looks like the more exciting it is, the better the data it provides.

However, there is still a long way to go to understand the data alone. Today's brain reading technology can understand some very superficial results, such as letting animals play very simple games or reproducing what animals have seen at very low resolution. Small movies, but basically these computers say only rough correlations between brain activity patterns and content, not real reading. It's like reading subtitles, learning a foreign language, and watching a lot, you may be able to recognize a few common words or common expressions, but you can't learn grammar by relying on these few. Every time I encounter some new sentences, I can only be confused. In this case, I can't interpret the creative thoughts output by the brain. In the end, isn't it the same as playing games with a controller?

Except for the buttons with predetermined actions that can be pressed in advance, other actions cannot do anything, so the key to this matter is not the technical equipment, but the long scientific research behind it. Even if we understand the output of the brain, To realize the ideal of the metaverse, we have to solve the problem of input, and we have to write information directly into the brain. Unfortunately, the way to directly copy the information into the brain like The Matrix does not seem to be possible for the human brain at present. Like a hard drive, the memory is not written on a clear magnet, but a complex network of neurons composed of many neurons. Each memory may involve the entire brain. It is too difficult to directly modify these neuron networks with external force.

But in the future, it is not completely impossible. For example, the human eye has a phenomenon called light exchange, which means that there is no light. You seem to see a flash of light, and researchers use this principle to implant electrodes in the eye sockets of blind people, but eyes that can't see things can also be turned into low-resolution display screens. If a company has such a product, it's simple In other words, it is to implant a larger electrode of 9 square millimeters into the retina, and then the 1500 electrodes inside can allow the user to see roughly such a scene. This ultra-low pixel imaging can be used for blind people. Help them recognize simple words and recognize the opposite face, but it is still far from healthy eyes. This technology can only be used to treat disabled people, but in fact, many similar technologies will eventually become common people. strengthen. Perhaps the first realization of the brain-computer interface is not the intubation of the back of the brain, but the intubation of the retina.

If the brain interface achieves a super breakthrough in a few decades, will the vision of the metaverse be realized at that time? It can be achieved, but the brain-computer interface of that level should do more advanced things. It would be too empty to use it as a super graphics card. So why? Because there are many inconvenient places in the human brain, for example, it is easy to forget things or say things are always on the lips, so the real meaning of the brain-computer interface is to connect the human brain and the computer, and learn from each other. This is a real cognitive upgrade.

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