Why can't anything travel faster than the speed of light?
How do we know for sure that nothing is faster than light?
Speed of Light: How fast can we move? Why does light travel so fast in space? What is the speed of light? What’s the speed of light? Why does light travel so fast? Why is time slower down near heavy objects? Why is time slower near heavy objects? When will we be able to travel at the speed of light? What happens to an object if it reaches the speed of light? Can the speed of light be increased? How can you make time appear to go faster? Why does time pass faster (as we think) when we go to sleep? Will the speed of light ever change? Can we increase the speed of light in a vacuum? How can you become faster? How can I make time go by faster? Why does time seem to go faster as we age? How do I make time go by faster? I think this is a very stupid question: in the reference frame of a photon, aren't we moving at the speed of light or faster? Why does time seem to go so much faster as we age? What would happen if we travel at the speed of light? How is speed of light calculated? What is the speed of light in a vacuum dependent on? Is the speed of electricity a synonym for the speed of light? What if time was passing a bit faster here on Earth? How does time slow down when you travel near the speed of light? What is the speed of light through different media? What would happen if an object would reach the speed of light? How do I become faster? How much time passes for someone traveling at light speed for 20,000 light years?