Many forget that a meme is simply a concept or idea that grabs hold within a human community and is propagated and promulgated. Patriarchy is a meme. Capitalism is a meme. Doing ‘bunny ears’ behind someone’s head in a photo is a meme (h/t Parker and Stone). Doing cave paintings of animals is a meme. Fashion of an era is a meme. Our entire social structure runs on memes.