How does a shadow travel faster than light?

Answer 1

The object casting the shadow moved, the source of light moved, the object upon which the shadow was cast moved, the shadow was viewed through a prism or a piece of glass that moved, stress or fear influenced the perception of the person seeing the shadow, some translucent or semi-opaque cloud or puff of smoke moved across the field and momentarily highlighted the shadow, or the shadow was never really there in the first place. There may be other possibilities, but they are not obvious to me at the moment.

Answer 2

It doesn't.

Shadow is the absence of light, it's what you have when there isn't any light present. If you turn off a lamp, it'd still be light in the room until the last photon that left the lamp has made it to the wall, had a few bounces and been absorbed as heat.

Saying that shadow travels faster than light is like saying that empty space behind a train is faster than the train.

Answer 3

A shadow does not actually travel faster than light. The perceived motion of a shadow can create an illusion of faster movement, but in reality, the speed of light is constant and shadows are simply areas where light is blocked or reduced in intensity due to obstruction.

Answer 4

The speed of light.