The reason that I am interested in behavioral contagions is that I firmly believe that if we can understand how behaviors spread in a social network and thus in a population from person to person to person to person, that we could potentially promote behaviors like…condom use, or tolerance.
PopTech Person-to-Person
![](http://opentranscripts.org/wp-content/uploads/2016/05/sinan-aral-social-contagion-900x506.png)