It is here that the idealized presuppositions of communication arise. Habermas claims that all forms of argumentation, even implicit and rudimentary ones, rest upon certain "idealizing suppositions," which are rooted in the very structures of action oriented towards understanding. These "strong idealizations" are always understood as at least approximately satisfied by participants in situations where argumentation (and communication) is thought to be taking place. Thus, when during communication it is discovered that the belief that these presuppositions are satisfied is not justified it is always taken as problematic. As a result, steps are usually taken to reestablish and maintain the belief that they are approximately satisfied, or communication is simply called off.