"Closure-at-first-sight' is described as 'an instant, intuitive vision of how your relationship with someone will end'. This does not reveal the circumstances that lead to that ending.

"The Law of Jante (yaan-teh) is a literary element that characterises not conforming, doing things out of the ordinary, or being personally ambitious as unworthy and inappropriate. It has been assumed by some to explain the egalitarian nature of Nordic countries. It It is used generally in colloquial speech in the Nordic countries as a sociological term to denote a social attitude of disapproval towards expressions of individuality and personal success.

The Memory Machine is a technology that allows for the irreversible removal of memories from human beings.