5 Answers

  1. In order for matter to exceed the speed of light, it is necessary first to reach the speed of light, and for this, as follows from relativistic mechanics, it is necessary to expend infinite energy, which is impossible due to the finiteness of the total energy of our universe. The currently known maximum velocities of the registered material objects (protons) accelerated to about light speeds in outer space are 0.999…999 (23 nines in total) of the speed of light. These events were registered in the Auger experiment. The regions in galaxies and the mechanisms of acceleration to these speeds are still unknown. The maximum proton velocities achieved at the LHC accelerator at CERN are 0.999999997 times the speed of light. According to the same relativistic mechanics, only massless particles (photons) can fly at the speed of light, but they also have a disadvantage. They can't go any slower.

  2. If any point exceeds C, then relativity effects will start.

    The point will start moving in the past of the region of space it is heading for. For the point itself, the present will be preserved, and we will only see a light trail from it, which cannot exceed C.

    This is paradoxical, but in the conditions of limiting the speed of light, the meaning of inertial reference systems is lost. This means that the world will have a different time relative to other bodies.

  3. If you managed to do this together with an entire galaxy, then no changes in your life will occur at all. Maybe some stars will disappear from the sky, and fie on them….

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