What we can learn from studying zombie infestations

zombies

What you need to know about the zombie virus:

What other contagions are spread from agent to agent?

Real viruses are contagious, as are memes such as jokes, anecdotes, rumors, jingles, slogans, and strange beliefs.

Here are few surprising contagions dug out of social science literature:

Three degrees of influence: As a contagion spreads from its source, it loses its potency. After about three hops its chances of influence are negligible unless reinforced from other agents.