What is a revolution (what does the concept of "revolution" mean)? What are the advantages and disadvantages of revolution?

①Revolution can be broadly and narrowly defined. In a broad sense, revolution refers to the promotion of fundamental changes in things, causing things to change from the old quality to the new quality of the leap. In the narrow sense, revolution mainly refers to social and political revolution.

②The goal of revolution is to bring peace, happiness and equality to all people in the human world, not only materially but also spiritually. In other words, revolution is a revolt of the majority of the people, against an unfair system. (As for your question about the disadvantages of revolutions, the historical background, purpose, results and effects of each revolution are different and cannot be generalized. However, it is safe to say that revolutions have had the sacrifice of the people as a price.)