[bdamm]

Pilots flying in "hard" instrument conditions also experience this. You can see the interior of the airplane, but everywhere you look outside is exactly the same shade of grey/black/white, and there's no usable data from your sense about the position of the airplane relative to the earth. Passengers who think about this might intellectually get it, but it's quite a different experience when you're looking out the front window and responsible for choosing the correct control inputs. I believe scuba divers diving at night also can experience this.

[justinclift]

When night diving, you can at least blow air into your hand then feel which way the bubbles travel. eg "which way is up?"

[julienreszka]

Unless you have a closed system like special forces usually do