Original sentence: A myth, in popular use, is something that is widely believed but false.Because of this usage, many people take offense when the religious narratives they believe to be true are called myths (see Religion and mythology for more information).This usage, which is often pejorative, arose from labeling the religious stories and beliefs of other cultures as being incorrect, but it has spread to cover non-religious beliefs as well
Edited sentence: "that's a myth").A second meaning of 'myth' is an explanation that is often based on rationalization but is considered false (from a scientific perspective).Claims to extreme longevity have often been believed, and often have religious undertones to them.However, over time some of the religious myths were replaced with other non-scientific rationalizations, such as nationalist ideology or medical quackery.In popular usage, a third devolution of the term 'myth' is used loosely to describe anything that is widely accepted as true but is not (i.One example is the set of longevity myths.This meaning is a devolution from the first one, but drops the connotation of 'creation mythology' (i.This usage arose from describing the religious stories and beliefs of pre-scientific cultures as being incorrect, but it has spread to cover non-religious beliefs as well.This usage keeps the core idea of an explanation for something that is not based on proven scientific fact, but usually has nothing to do with religious thought.While many people take offense when the religious narratives they believe to be true are called 'myths' (see Religion and mythology for more information), these stories are often debunked to advance a scientific cause, not put down a pre-scientific culture.origins of the world)