The hopeful news Dr Bearman's work brings is that it should be easier to stop the spread of sexually transmitted diseases through a teenage-type graph than an adult one, since the spindly chains of connection between individuals can more easily be broken.
Unfortunately for snow enthusiasts, the model found that the fragile needle-like ice crystals connecting the two layers can be brokeneasily and separated by the weight of new snow or a skier.
Townsend's book had the benefit not only of being jargon-free, but also of being easily digestible it ran to around 250 pages and was broken up into small sections, none of which was longer than three pages.