What is the dispute between the earth faction and the spaceship faction in the wandering earth?

The contradiction between the wandering earth school and the spaceship school

Liu completed this epic sci-fi short story through hundreds of generations of human beings and more than ten years. ...

It's a pity that sensibility is more than rationality. In order to exert sensibility, rationality is sacrificed, or it can be said ... It's a bit artificial. ...

In the university forum, it has long been suggested that wandering earth has difficulties in setting up scientific related topics. ...

Will cause these injuries, the biggest reason is the choice of earth pie and spacecraft pie. ...

Immigrating with the whole earth has too many useless parts, accounting for more than 99.9% of the total weight. This is a very inefficient behavior. Generally, an aerospace vehicle needs to carry several times its own weight of fuel (it is impossible to propel this celestial body only by mountains on the surface of the earth). Although vasimr has a large specific impulse (small relative thrust), it can't last that long ... (fusion of heavy elements on iron will not produce energy).

Generally speaking, in the same type of sci-fi works, interstellar immigrants all use spaceships, and the personnel and maintenance equipment should be as streamlined as possible. Moreover, to find a way to solve the problem of propellant fuel, the number of immigrants is less than 100. ...

The running energy of the earth ecosystem comes from the sun, and the magnetic field generated by the rotation of the earth's core protects the harmful rays of the universe. Once the earth leaves the sun and the geomagnetic field stops running, the earth's ecosystem will collapse and be destroyed, and it will be impossible for human beings to survive for hundreds of generations ... naturally, there will be no development like the Mars trilogy. ...

Moreover, the earth is not a perfect rigid body. It is driven by the earth engine located on the surface of the earth's crust. Its propulsive force and the reaction force of the earth's inertial force, as well as the tidal force produced by the gravity of various celestial bodies, will split and crush the crust. ...

Not to mention calculating the difficulty of attitude control and navigation direction control, and cutting into the orbit of a new star ... From a rational point of view, if this can be done, it will be much easier to send it by spaceship ... This is a question of return on investment and risk. It is very simple to have the resources and technology to promote the earth and build several high-speed immigration spacecraft. ...

But to make the wandering earth have an epic feeling with a huge background, it is necessary to make the earth faction reasonable ... dominant. ...