We take a look at what would happen to the human body if it could travel at the speed of light.
What would happen if you moved at the speed of light? : Read more
What would happen if you moved at the speed of light? : Read more
Some (not me except in picturing) have already been there, done that, in the math. The total mass matter and energy of the universe equals zero. Truly bothered those who came up with reduction to zero (0-point) until Stephen Hawking told them not to let it bother them. He told them the universe is always there (at the 0-point of infinity (the zeroing point of the infinities -- the infinities remaining though not locally, relatively, finitely)).This is a question where we get a reverse Dunning Kruger effect - it is beyond the region of physics that science really knows or understands and everything said ends up being essentially speculation.
What everyone does know is that mass dilation increases the effective mass of objects near the speed of light until at light itself this in theory becomes infinite. Similarly time dilation may slow the speed of time at the speed of light to zero. From the objects perspective as it accelerates it becomes infinitely fast.
A fairly obvious point is that the speed of light is an intersection point between the STL and FTL realms of speed. Another obvious point is that light itself does have mass though zero rest mass.
If the mass of a massed object could somehow be balanced to zero then it could move at the speed of light. In fact it would immediately accelerate to the speed of light - for 'free'. There are two basic hypothetical approaches to balancing mass to zero - either adding something with negative mass or creating some kind of 'shield' that hides the mass. Curiously if we could create one a real Schrodinger box would be a possible way of achieving the second.
So maybe not completely absolutely impossible after all.
Worked that out myself once. Realized that with neg mass we could have a universe with a zero net mass. Never had or found a way to prove it or test it though.Some (not me except in picturing) have already been there, done that, in the math. The total mass matter and energy of the universe equals zero. ..
You can't because as both Albert Einstein and Stephen Hawking should have, and did indirectly stating, realize light's coordinate point past-future histories SPACETIME is in fact place positional (place super-positional (c=1 | t=0)) rather than any particular velocity as we understand velocities. Place positional where? Everywhere and nowhere in particular . . . the ultimate in connected quantum entanglement . . . and remembering that we are always in motion, our atomic and subatomic makeup is always in motion, the Earth, the Solar System, the Milky Way.... all of it is always in emergent motion (with Einstein's and Hawking's, and my, SPACETIME sole exception to the rule (sole exception to the law)).What would happen if you moved at the speed of light? Well, you can't.
If you could observe people moving at "normal" speed, Pravica said, they would appear to be moving in slow motion.