The biggest difference between communication today and communication in the past: due to the intervention of technology, "communication" has transcended time, space, and even the walls of power and class

----- -Gifford

In the market economy, you have to rely on yourself to survive, and you must innovate while seeking differences. The specific feeling is that we should regard the prosperous world as a wilderness, regard the already dazzling material civilization as virgin land that has not yet been cultivated, and boldly explore and shape the civilized world in our minds according to our own wishes.

————"The Rise of the Fourth Industry" by China and Yan Jianzhong

1: Environmental pollution. This is the most direct and conspicuous disadvantage.

2: Species extinction is accelerating. This is caused by environmental pollution and human hunting. It is also a disadvantage of scientific and technological development.

3: Personal safety is becoming increasingly insecure. Now on average, tens of thousands of people are killed every day. Tens of thousands of crimes have occurred, and most of the criminal methods are related to the current new technologies. In particular, gun crimes have made it difficult for ordinary people to guard against them. From the Second World War, we can already see that with the advancement of technology, Development, the damage and losses caused by current wars are far from what they were before, and may even lead to the destruction of mankind.

4: Human physical fitness is not as good as before. With the development of science and technology, gas vehicles The emergence of various means of transportation such as trains and airplanes has brought about major changes in human daily life. Human beings no longer always rely on their own two legs. Therefore, the physical quality of human beings today is no longer comparable to that of the past. In the past, Xiang Yu's "strengthening the mountains and rivers" is no longer possible in today's society. If this situation continues to develop, it may cause human limbs to atrophy and human beings to take a new form.

5: Various emerging germs are constantly emerging, and the lethality of many germs has far exceeded the destructive power of previous germs. This is because the rapid development of medical technology has accelerated the mutation of viruses, so that the development speed of science and technology can no longer keep up. With the speed of virus mutation, humanity may one day be wiped out by a major plague.