Fan Casting Cannot Tell Fiction from Reality in Sort by Tropes

Okay, so you start to be unable to tell the difference between fiction and reality. Often you will think a TV show is real, or believe you are actually in the show. You could be a Loony Fan who hallucinates things, a very small child who merely believes whatever they are told, or maybe a big Manchild. You might just lack the ability to understand that fiction is merely fiction, and naively apply it to real life without necessarily imagining anything and/or being eccentric and still happily unaware of what they're seeing or doing in hindsight.