T-Rex: I have come up with the best science fiction story idea ever!
T-Rex: It's about a man...
T-Rex: A man who can only see well when a light is turned on!
Dromiceiomimus: Most guys I know are like that, T-Rex.
T-Rex: But this guy can only see ANYWHERE when a particular light is turned on! Even when he's outside of the room with the light! Even when he's on the BEACH. If the light switch is turned off, so too are his eyes!
Utahraptor: So what's the hook? As science fiction, where's the thinly-veiled social allegory to our world?
T-Rex: Huh? There's no allegory. Just a twist at the end when we find out the whole thing was psychosomatic!
Utahraptor: But then how would he know when the light is actually on?
T-Rex: That's part of the fiction!
T-Rex: The SCIENCE fiction!!