Why does light even move? what force makes it move at insane speed?

Question

Why does light even move? what force makes it move at insane speed?

In: 193

Answer 1

Instead of thinking of it as movement, think of light spreading.

When you drop water on the floor, it “moves” at a speed consistent with the angle, mass, etc. But light doesn’t have those resisted factors like friction or air resistance..

So it spreads at an incredible speed.