That is, there are two main ways ideas can spread - by being transmitted easily, or by remaining in someone's mind for a long time (having a low transmission rate but many opportunities for that transmission to occur). The term has also been applied to the spread of [[viral]] fads on the [[Internet]] such as certain YouTube videos, because the fads spread rapidly and are only introduced to new people through those who have already contacted it. These are in the category of being transmitted easily, and since they have low staying power, they rarely remain popular for more than a few months each. | That is, there are two main ways ideas can spread - by being transmitted easily, or by remaining in someone's mind for a long time (having a low transmission rate but many opportunities for that transmission to occur). The term has also been applied to the spread of [[viral]] fads on the [[Internet]] such as certain YouTube videos, because the fads spread rapidly and are only introduced to new people through those who have already contacted it. These are in the category of being transmitted easily, and since they have low staying power, they rarely remain popular for more than a few months each. |