Skyscraper

The topic of Super High Skyscrapers should be built whether or not is quite controversial.
In my opinion, skyscrapers are not necessary for human beings. Reasons are given that safety, economic, environment and other factors should be seriously considered.

As we all know, planning to build super skyscapers for now is just people's imaginations. Even designers and engineers cannot be sure about the success of building a skyscraper.
First, people cannot predict natural disasters like earthquake, fire, strong wind or others 100% for sure. So it is not safe enough to build a skyscraper. As designning a wonderful prevention system in order to deal with these kinds of natural disasters, government must use huge amount of funds to make it pratical. Is it necessary for people to do things like that? Would everybody or most people be satisfied with this decision? Obviously not! Can any body promise that the horrible event of 911 will not be happened in any other countries? Why do people like such kind of "CHALLENGE" nowadays??
As I know that Taiwan 101 is making a loss everyday, our Jinmao Tower in Shanghai also spends millions of money just for one day! If we build a super high skyscraper, economic of every country will change a lot beyond of our imaginations. One problem might be appear that different levels of people will be met in different ways.

Some people might say that there will be no space for human beings to live in the future. Reaserchs show that most people would like to live and work under 50 stories, and there're number of people who have acrophobia need to be considered. Also, engineers find that soil of some place is not able to build such a high skyscraper.

We can see that there are so many problems we need to face and the most important fact is people who are not willing to live in a skyscraper are the most of them living in a real world...