The difficulties of interstellar migration

I can't. At present, our human exploration of space has been far away from the solar system, but we still haven't found a planet similar to Earth that can live with human beings. Because the internal environment of a planet in the universe depends on the external environment of the planet, just like the earth, the distance from the sun is just right and the gravity is just right, which forms such a unique planet.

But the earth's resources are limited. Do you think it is possible to build another earth? I have to say that this is an extremely bold idea. When scientists try to find a way out again because of the gradual depletion of the earth's resources, they all think of some strategies to turn to space and the ocean, because it is impossible to build the earth as you said, and I dare say that no one can think of this under the existing scientific and technological conditions. Ignorance is fearless, and the development of science and technology is far from this level.

At present, mankind has only launched many rockets, many satellites and some space stations in outer space, which have been realized after hundreds of years of development. Next, our goal should be the moon near the earth. When the population on the earth reaches the level of the earth, then we will emigrate from the stars. This seemingly illusory vocabulary at present, we have to mention it and have to consider it. After all, there is only one earth. What we can do is not to waste resources and increase the population too quickly.

Faced with the reality that some conjectures cannot be realized, we should be more pragmatic and do something within our power to slow down the consumption of resources. For example, the garbage sorting advocated now, environmental protection travel, previous CD-ROM actions and so on can all help our mother earth. Then speed up the development of science and technology and find more resources in the ocean, which is the largest resource pool on the earth.