Change of the world in 21st century

The 21st century has begun. What changes do you think this new century will bring? Use examples and details in your answer.

 We, the human beings, have accomplished a lot of great, glittering and surprising developments since when the human beings appeared in the earth. The development speed had been so slow. It seems like there were not any changes in the human history. However, after the Iron Age, people started to develop technology with the increasing speed and we achieved so great and amazing things in every single parts of our life. Now the topic of our history is what changes that 21^st century will bring.

             Since the technology in the present is developing in a very high speed, I will choose a technological development as the first factor of change that 21^st century will bring. Before 21^st century, the technology had developed in 4 main sections; physics, chemistry, biology and engineering. However, in the 21^st century, the science and technology have been departmentalized and developed in so many different sections include the 4 main sections. This will make the life of human beings more convenient.

             Additionally, the development of technology in many sections will bring other annexed changes. The most important change that occurred because of the technology development is the extension of life expectancy. This extension of life expectancy will cause a lot of change and a lot of problem in the 21^st century. An aging society will appear. The burden to the young people will increase; the infrastructure for the old people will also increase. These kinds of change will have old people work in their ages unlike today.

             Finally, globalization will be accerlated, so more unions will appear. Since 20^th century, more unions such as UN or APEC appeared because the each nation felt the necessity of cooperation. So I expect that more unions include even the world union will appear so that many people can equally have a right to get the same welfare and same protection from the world union.

             I bet the change that I mentioned is not whole change that 21^st century will bring. More changes and more developments will occur. However I’m really sure that the people will try to protect the earth and protect the people themselves on the earth since they know their behaviors has destroyed many things on the earth. This will bring many positive changes to both earth, human beings and everything on the earth.