Where is the Puck?

Quote from Gladwell’s famous book “The Tipping point”: “The best way to understand the emergence of fashion trends, the ebb and flow of crime waves, or, for that matter, the transformation of unknown books into bestsellers, or the rise of teenage smoking, or the phenomena of word of mouth, or any number of of the other mysterious changes that mark everyday life  is to think of them as epidemics. Ideas and products and messages and behaviours spread just like viruses do.”