To make progress in understanding all this, we probably need to begin with simplified (oversimplified?) models and ignore the critics' tirade that the real world is more complex. The real world is always more complex, which has the advantage that we shan't run out of work.
Source: 1984, Memes as Replicators, Ethology and Sociobiology, Vol. 5, p.159
Contributed by: Zaady