B
Bob Smith
You can not understand the law of inverse squares all you want. Your lack of understanding regarding a basic law of the universe does not make it cease to exist.
You keep asking this question and people keep telling you why you are wrong to even be asking this. But that is not the answer you want to hear so you keep asking.
^^^^ This.
Do some more research on how light loses intensity exponentially and if you still have questions, we'll be here to help.
When you come in here claiming that "common sense" tells you that it doesn't matter how far a plant is from a light and that light doesn't lose intensity when traveling across a room, you make it fairly difficult to take you seriously.
Comparing an indoor grow light to the sun is pretty ludicrous.
As somone else said, grow two identical 4x4 gardens, one with a 1K watt 1.5' above and one with a 1K watt light 5' above and let us know if the distance from the light source matters.