Why don't the trio make the planet a wandering earth?

1. The technological level of the threesome did not reach the level in the wandering earth.

The three-person first fleet was threatened, and after the course was deflected, the spacecraft had no energy to return to the three-body system, indicating that the spacecraft had limited energy.

In the wandering earth, the fuel used by the engine is actually the stones and soil on the earth. This technology is close to antimatter engines. Three-body people obviously don't have this level, otherwise they will never lack energy.

2, there is no need for three people to move the planet here.

The wandering earth moves the earth because it is uncertain whether it can find a livable planet elsewhere, but it is easier to find a star, as long as the earth is placed in the orbit of a star elsewhere.

Three people all know that the planets in the solar system are more livable. People can just come over. Planets are difficult to move and easy. The three stars in the three-body world run irregularly, and maybe the world will be destroyed in the next second. Before moving the planet out, it may be destroyed, or it is more reliable to escape quickly by spaceship.

The last interesting place, the three-body world is 4.3 light years away from the solar system. In the real world, 4.3 light years away is proxima centauri, where there are three stars. The destination of the wandering earth is proxima centauri.

"Three-body" belongs to proxima centauri, and wandering the earth is our past.