Yesterday I wrote my first letter to John Nash.

The Social Theorem (from my article “Social Graphs in Mathematics“, on Paul Erdős, John Nash, and Bertrand Russell, not surprisingly rejected by Notices of the American Mathematical Society in 2009 because it didn’t end with a conclusion, and then printed on my own cost and distributed) goes something like this:

Whenever a mathematician meets another mathematician in a point on the social graph, they will either ignore each other, produce a new proof, occasionally a new mathematician, or deﬁne a new conjecture.

My conclusion in 2014 after visiting MIT is:

**Expand your social graph.**