Why/how is light the fastest thing in the universe and nothing else can be faster?

Question

Why have we ruled out the possibility of finding something faster when we’ve only scratched the surface of space exploration and understanding?

In: 144

Answer 1

To move forward, you need to move mass. To move mass, you need energy. The faster you travel, the more energy is needed to do so.

Light has no mass and therefore doesn’t require energy to move itself. The speed in which it travels is the speed in which a massless object can move through space. It is the only known thing to have zero mass (gluon excluded) so nothing can move faster than light because nothing has “negative mass”.

To move as fast as light, you’d need to create more energy to do so – an infinite amount which is impossible.