The speed of light is constant.
Einstein figured out that time is not. He said that as we approach the speed of light, time slows down.
Earth is moving at about 6000 mph.
So, if earth began moving at the speed of light, time would stop.
If time stopped, would we become eternal, or would we cease to exist?
If we could go faster than the speed of light, would we go back in time, or regress in age?
When I think of Carl Sagan, and the "billions and billions" of planets in the universe, I wonder...What are the odds that there is a planet or a star ship out there somewhere that IS moving at or above the speed of light?