Figure 6

Nearest neighbors average degree. Cascades’ outreach as a function of seed’s average nearest neighbors degree $〈k_{\mathrm{nn}}〉$: remarkably, nodes with the highest connectivity do not enhance, but rather diminish, cascades growth. As in the previous figure, largest cascades are obtained when second spreaders (the seed’s neighbors) have, on average, ${10}^2<k_{\mathrm{out}}<{10}^3$ for the (left: ‘grassroots’; right: ‘elections’).