Sanders support as a function of time (graph)

[leftcoastmountains]

[nadinbrzezinski]

1. Just to note that graph looks awful familiar

[mindwalker_i]

2. It looks like an exponential

That would actually fit if one models Sanders' support as someone knows and likes him, tells two other people who then come to like him, and they each tell two other people, etc. Of course, this exponential can't go above 100%