What is the speed of Darkness?

Darkness isn’t a thing as such it’s merely the absence of light therefore it can’t have a speed.

I suppose you could say that it is the same as the speed of light. If you have a light source and turn it off, the end of the light and beginning of the darkness travel at the speed of light.

C * i

“As there is speed of light so there should be speed of darkness”

No, since darkness is merely the lack of light.

There has got to be a rule that this question appears every few years on QA sites.

Yeah, dark isn’t something. Dark is something leaving.

It’s like some kind of zen koan, what is the speed of not-falcon, all other possible speeds.

Woah. I like zen koans.

What is the sound of one hand clapping?

What is my true face before my mother and father were born?

Does not the nutsack need kicking?