The Four-Dimensional Space of Earth Civilization

In the 21st century, humans are thriving on the earth and there are countless high-rise buildings. However, do you think humans on earth are the only advanced species? The answer is no. In the space we live in, there is a barrier that you cannot touch, but it actually exists. Some scientists say it is a four-dimensional space, and they are right. Some people have already begun to explore and discover. Do you think this is a good thing? Natural selection, survival of the fittest, you have to know that where there are people, there will be rivers and lakes, and where there are aliens, there will be destruction This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.