Suspension of disbelief
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Suspension of disbelief refers primarily to the willingness of a reader or viewer to accept the premises of a work of fiction, even if they are fantastic or impossible. It also refers to the willingness of the audience to overlook the limitations of a medium, so that these do not interfere with the illusion. However, suspension of disbelief is a do ut des: the audience agrees to provisionally suspend their judgment in exchange for the promise of entertainment.
Inconsistencies or plot holes that violate the initial premises, established canon, or common sense, are often viewed as breaking this agreement. For particularly loyal fans, these 'dealbreakers' are usually accompanied by a sense of betrayal. However, the extent to which the suspension has been compromised is often dependent on the beholder. A physicist, for example, may be more likely to question a fantastical breach of known physics, while an architect's suspension of disbelief may be damaged by being introduced to a building of unrealistic proportions. Similarly, 'common sense' is a relative term, and so the same piece of fiction may stand up or not depending on the particular audience.