It is one of the rule guides about to much editing.You're talking bollocks again.
The fact that it's dark means - by definition - that there's no light.
Therefore we can't see at all.
Then you "realised" wrong. They weren't the "wrong way - you got one right and one wrong.
Sounds like you're making this up.
Citation needed.
So you agree that in dark space we can not see at all?