WIKIPEDIA SAYS; "PROPONENTS THEORIZE THAT MEMES ARE A VIRAL PHENOMENON THAT MAY EVOLVE BY NATURAL SELECTION IN A MANNER ANALOGOUS TO THAT OF BIOLOGICAL EVOLUTION. MEMES DO THIS THROUGH THE PROCESSES OF VARIATION, MUTATION, COMPETITION, AND INHERITANCE, EACH OF WHICH INFLUENCES A MEME'S REPRODUCTIVE SUCCESS. MEMES SPREAD THROUGH THE BEHAVIOR 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. MEMES THAT REPLICATE MOST EFFECTIVELY ENJOY MORE SUCCESS, AND SOME MAY REPLICATE EFFECTIVELY EVEN WHEN THEY PROVE TO BE DETRIMENTAL TO THE WELFARE OF THEIR HOSTS."; THEREFORE, MEMES ARE AT LEAST SOMEWHAT CLOSE TO BEING ALIVE.