# Memes - [[are ideas that are replicators]] - [[comprise culture]] - [[evolve, meaning change, sometimes creating knowledge, through alternating variation and selection]] - [[include both jokes and scientific theories]] - [[are analogous to genes, but there are also profound differences in the way they evolve. The most important differences are that each meme has to include its own replication mechanism, and that a meme exists alternately]] - [[employ only two basic strategies of meme replication, anti-rational and ]] - [[that are anti-rational rely on disabling the recipients' critical faculties to cause themselves to be replicated]] - [[that are rational rely on the recipients' critical faculties to cause themselves to be replicated]] #L1