“Meme” is a term that defines a cultural counterpart to the biological gene. Memetics is a study field that understands culture as an evolution in homology similar to biological evolution. Accordingly, memes are seen as units of cultural information that partake in a selection battle to be spread among the minds of human beings. Although the scientific value of the meme concept has been widely questioned in academic contexts, the meme has proven effective in practical use, as demonstrated by widespread use of “Internet memes.”