 A parallel question with respect to knowledge would ask: Supposing you have a true belief, is that all there is to knowledge? And here most would say “no”. In addition to the true belief, how you came by that true belief is also important. Is it based on good evidence, or a reliable process, or a well-functioning design plan? When it comes to knowledge, these further normative questions clearly matter. It is therefore not surprising that the same sorts of questions have been asked with respect to understanding.