While this may be strictly and pedantically true, the fact remains to declare ignorance of something, even complete ignorance, means you must have minimal knowl

While this may be strictly and pedantically true, the fact remains to declare ignorance of something, even complete ignorance, means you must have minimal knowledge of it. (even if the knowledge is merely existential). Paradoxically, this minimal knowledge is frequently be enough to deduce potential utility and applicability. (particularly with a descriptive name such as pointer arithmetic).