What makes light so fast ,and can nothing attain this speed except light itself?
Light is so fast because it has no rest mass. Light can be stopped by both a partical and a wave, not sure how exactly but it can be stopped.
Dark is faster. It has to be faster to get out of light's way so quickly.
There is no why. It just is the way our universe works. Other things are as fast. Other massless particles like gravitons (gravity), if they exist, can exist only at the speed of light, never faster or slower.
