Modern physics with respect to Einstein's theory of special relativity makes to know that massive objects cannot move at the vacuum speed of light and that in the classical world the maximum speed limit is also the vacuum speed of light - which brings about the constancy of the speed of light, in fact the theory of special relativity is a generalised theory of Newtonian Dynamics at all inertial reference frames(uniformly moving bodies) and the much more generalised theory being general relativity, which holds for non-inertial(accelerating) reference frames.
I would disagree with your argument: "massive objects cannot move at the vacuum speed of light". I think that we can move any mass at the speed of light, but we need more energy to do so.
Well, if you observe closely, the theory (special relativity) specifically talks about "mass" and the "vacuum speed of light" being the maximum speed limit but we also know that elementary/subatomic particles also possesses another fundamental property called "charge". The charge just like mass, possesses a field around it (electric field) and if you observe the equations of the electric field and the Newton's gravitational field ( since general relativity approximates to it at less massive scales), you would observe that they are kind of mimicking each other, charge looks like mass in another world but we call this world the electric world.
A lot in our equations and models mimics another. For example, the representation of our solar system seems to reflect the representation of the elementary particles in an atom. As you have mentioned, electric and gravitational field equations reflects same structure: Q = kq1q2/d^2 (Coulombs Law) while F = Gm1m2/d^2 (Newton's Universal gravitation), and it is not peculiar or coincidence. Both equations are looking at the force (electric and gravitational) between two bodies.
Now, let's assume we had a particle with a charge but with no mass, the question then is, what is the speed range of this kind of particle in it's own world ?.
I would have it peg to zero. A particle of no mass but with charge seems to have no effect. If it still follows Newtonian mechanics, mass is a central point to quantify force and movement. If the particle has no mass, did the particle exist? It seems that the hypothetical particle exist without relevance. I might be wrong with this one since I am no expert on quantum mechanics.
When you move faster than the vacuum speed of light, weird things happens...
I agree that in the future, there maybe a speed that is over the speed of light. The best candidate for moving beyond the speed of light is the elementary particles. Also, I do agree that there are peculiar things that would happen when we travel faster than light. Time travel can be achieved but it is time travel to the future and not back to the past. Or teleportation can be achieved. Quantum is a very tricky phenomenon and if we can understand it fully, we can see scientific and technological breakthrough.
This was an interesting read, @clinton19. !discovery 15
That's not my argument, it's the argument of special relativity. Also according to special relativity, giving massive objects more energy would only make them approach the vacuum speed of light, not make them move at the vacuum speed of light.
Oh, I thought that was your argument. Yeah, an infinite mass can't accelerate beyond the speed of light as per special relativity. !PIZZA
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