iirc it's actually to do with angles of light reflection off the moon or how if a bright light is shone in darkness you can't really see much around it but if a dull light is shone you can still perceive shapes around the light source (think lowering the phone brightness when it's night and how that affects our sight)

Maybe he's just talking about the red, because we all (should) have that

Also highly unlikely that they'll let you have your phone out during an exam

Phezulu

I will

@king_me hmmm

Nut so

Much