Superluminal can go to the future and see the past. Is it back to the past or in the future? Go to the future and see what happened in the past. Is it in the future or in the past? My little brother is so stupid that I feel dizzy. Is my logic wrong? (don't copy it. It's better to be more popular.)

Superluminal can go to the future and see the past. Is it back to the past or in the future? Go to the future and see what happened in the past. Is it in the future or in the past? My little brother is so stupid that I feel dizzy. Is my logic wrong? (don't copy it. It's better to be more popular.)

First of all, it is impossible for macro matter to move at the speed of light (or above). If this proves that there are special cases in general relativity, and if a person moves faster than the speed of light, the gas will produce a great pressure when accelerating, which can only be realized through wormholes. But wormholes can't hold the volume of a spaceship, If you overcome all the difficulties and you achieve it, then if you go back to the past and kill your grandmother, why are you still alive? If you go to the future, you can't go back to the past. Besides, there is no absolute concept of time, just each observer's own scale. It can be said that time is a distortion of space, not a thing that will never return

Superluminal method
If the object is long enough, let the two ends of the object be a and B respectively, and make a uniform circular motion with the center of point a, then can point B exceed the speed of light? AB > 299792458 / π speed = one cycle / S is just a sudden fantasy. If it can be done, then hang an object (or Cosmo bin) C on point B, and throw C away when point B exceeds the speed of light, Is C flying in a straight line at superluminal speed? It's similar to throwing hammer
AB > 299792458 / π / 2, will the earth slow down or stop its rotation if a long enough object is built on the equator and extends out of the universe?

There is not so much energy to make AB rotate. The closer the B end is to the speed of light, the greater the mass is, the more energy is needed to accelerate. It is impossible to reach the angular velocity of 1rad / s

The speed of light is 300000 kilometers per second, and the light year is a unit of time
We should catch and eliminate a large number of harmful animals
In July 1969, American astronauts first landed on the moon
The denser the screw thread, the harder it is to screw
When it's winter here, it's hot summer in Sydney, Australia
Leverage is a powerful point, a key point and a fulcrum in the middle
At the international space station, a match will go out immediately because there is not enough oxygen

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