According to Musk's latest announcement of Neuralink, they can efficiently and safely implant chips and wires (only 4-6 microns in size) to transmit and understand information about the human brain in larger quantities, which is also known as invasive brain-computer interfaces.
Non-invasive means that it does not need to implant any parts into the human brain, and the current popular way is to read EEG.
The progress made by Musk is immediately reminiscent of the science fiction movie Matrix more than 20 years ago, which is too imaginative, if this technology matures, the plot in the movie is all reasonable, and people can "live" in the virtual environment without knowing it, and the concept of the metaverse is also based on this, and the importance of this technology on the future impact of human beings is self-evident. Of course, to achieve that extent, it is not a simple attack on 996 can be done, the technical level is too wide, medical, biological, computer, AI, new materials, etc., each aspect must be fully raised to a very high stage to achieve, at present, it is relatively close to solving the needs of some disabled people, improving people's effective lifespan, entertainment games (such as the metaverse), military applications. But in any case, the development trend remains the same, and we will go to the future without knowing it.