 Richard Brodie links half-truths to memes "the truth of any proposition depends on the assumptions you make in considering it—the distinct memes you use in thinking about it".Brodie considers half-truths a necessary part of human interaction because they allow practical application of ideas when it is impractical to convey all the information needed to make a fully informed decision, although some half-truths can lead to a false conclusions or inferences in the world of logic.The notion of half-truths has existed in various cultures, giving rise to several epigrammatic sayings.