In the research of “finger literacy”, Professor Li Sichun found that several eleven or two-year-old children have the ability to read with fingers and hear words with their ears. That is, use colored pens to write Chinese or English on a piece of paper or draw a pattern, and then fold the paper into a small paper ball and give it to the children to put in their ears or hold it in their hands. The result is as fast as tens of seconds. It takes a few minutes to tens of minutes to “see” the words written on the paper or the patterns drawn on the paper. After four years of rigorous experiments, he determined that finger literacy is a real and concrete fact. This kind of non-eye vision can only be achieved with the “screen effect” in the brain, and the palm temperature must be below 34°C. Other measured features include the fact that the subject’s eyesight will reduce the color recognition rate; the signal transmission process of the hand seems to be scanning the inside and outside of the paper sequentially, etc. These are important for understanding the principle of finger literacy in the future. data.