Why we can't reach the speed of light 'C'
The energy required to accelerate any mass rizes exponentially. As the speed aproaches 'C' the increase in the effective mass becomes infinite. So to does the required energy.
That is the simplest explanation.
It require an infinite amount of energy to accelerate any mass to reach the speed of light
This doesn't apply to expansion of space/time itself. So if we could safely cocoon ourselves in an electromagnetic bubble and compress the space/time in front of us while stretching it out behind us. There would be no limit to the effective speed. Of course navigation would be a *****.
The Einstein-Rosen bridge idea that is better known as wormholes, would work if you could stop them from collapsing into a singularity and crushing all of your atoms and sub atomic particles out of existance as soon as you entered the mouth. That is of course if you can find one.
