A meme (pronounced /miːm/) comprises a unit or element of cultural ideas, symbols or practices; such units or elements transmit from one mind to another through speech, gestures, rituals, or other imitable phenomena. The etymology of the term relates to the Greek word mimema for mimic.[1] Memes act as cultural analogues to genes in that they self-replicate and respond to selective pressures.[2] Richard Dawkins coined the word “meme” as a neologism in his book The Selfish Gene (1976) to describe how one might extend evolutionary principles to explain the spread of ideas and cultural phenomena. He gave as examples melodies, catch-phrases, and beliefs (notably religious belief, clothing/fashion, and the technology of building arches).[3] Meme-theorists contend that memes evolve by natural selection (in a manner similar to that of biological evolution) through the processes of variation, mutation, competition, and inheritance influencing an individual entity’s reproductive success. Memes spread through the behaviors that they generate in their hosts. Memes that propagate less prolifically may become extinct, while others may survive, spread, and (for better or for worse) mutate. Theorists point out that memes which replicate the most effectively spread best, and some memes may replicate effectively even when they prove detrimental to the welfare of their hosts.[4] A field of study called memetics arose in the 1990s exploring the concepts and transmission of memes in terms of an evolutionary model. Criticism from a variety of fronts has challenged the notion that scholarship can examine memes empirically. Some commentators question the idea that one can meaningfully categorize culture in terms of discrete units.
