'9/11 was an inside job' was an inside job!
This is for when an inner X is part of an outer X. If the X is a show, the subtrope in question is Show Within a Show
, if the X is a dream, the subtrope in question is a Dream Within a Dream
May also extend further to X-within-X-within-X, etc.
Often used as a form of Mind Screw
- Parodied in the above XKCD alt-text.
- Seen in many math-related fields, such as computer science, which has nested if-statements or nested do-loops to control for several conditions, and math itself, wherein a "second derivative" is basically a derivative of a derivative, a "third derivative" is basically a derivative of THAT, etc...
- This meme.
- All examples of Show Within a Show and Dream Within a Dream double as examples of this.