Darkness is not a seperate entity as light is the entity that can be measured. Because darkness is the absence of light. then light being a + of (something) and darkness being 0 that means that a - of (something) is actually the opposite of light?any opinions on this?
Yes, light moving backwards in time. Because time stops when you reach the speed of light, time is meaningless for photons, they can quite easily travel backwards in time. A photon, however, remains the same whether it is travelling forwards or backwards in time, this makes a photon it's own antiparticle. Therefore: light is the opposite of light.
