However, when one puts forth an idea in the form of a problem, there are certain largely tacit and implicit presuppositions which must be satisfied if the activity is to make sense. Among these is of course the assumption that the questions raised are rational and free of contradiction. Sometimes, without our noticing it, we accept absurd problems with false or selfcontradictory presuppositions. In the practical and technical realm, however, we can usually sooner or later detect that our question is absurd, and we then drop the “problem” as meaningless.
