With the development of science and technology, China has become one of the major powers. However, these technologies are really good? The ancient people, rely on their own ability to survive, wind and rain still in order to survive and hunting. Now? Wind and rain, big winds, what bad weather, people will stay at home. You can blow air conditioning, watch tv. People become lazy. The body also is less strong. In this case, what is the progress of mankind, or human regress?