Talk about the findings of childhood in context. What does the last sentence of this text mean?

This sentence is a pun. One meaning is that it tells the real situation in the development of science; Another meaning is that "I" expressed my views on this matter in a humorous and self-deprecating way, which means that the great scientists in the world are still like this, and what happened when "I" was expelled from the classroom because of my discovery? From this, I know a truth: the great inventions and discoveries in the world sometimes lie in people's ignorance and unaccustomed, and they are regarded as wrong conclusions and despised or even persecuted. This is a phenomenon.