This article is part of the Negotiation Series.
Implicit assumptions in an argument are assumptions that are assumed true by one or more parties to the argument but not explained or proven to other parties to the argument, especially the decision makers. A simple example, used by parents against their children since time began, is: “If all your friends jumped off a building, would you do that as well?” The implicit assumption is that the friends in this case are not capable of making rational judgments and that if they are jumping off a building they must be foolish. The idea that there may be a good reason to jump is assumed away. We do not expect children to be able to identify such a subtlety. Unfortunately adults would have a hard time identifying this implicit assumption. Continue reading