A Serious Question from an Educated Layman

[fargoth]

well, even if instant speed changes were possible, the kinetic energy of the system is inertia dependant... this is experimentally varrified.

the energy you have to give to body inorder for it to achieve a certain speed relative to you is the same no matter what's the time it took you to give it off to that body.
so a body can't go faster then light... the inertia goes to infinity as the speed goes to C.

i could build a perpetum mobile if i could make things go at relativistic speeds with less energy just because i made them get this speed instantly.

 

[Flatland]

With regard to all the Points, these were quoted from the theories/laws. They mean whatever the author meant.

In point 1, it seems quite clear that ANYTHING in motion can equally call its observer the one who is in motion. If this is true, we are all traveling light speed right now, relative to the photon's point of view. It's an impossible paradox!

actually, from a photon's point of view the universe is still a singularity, there is no such thing as traveling from a photon's perspective.