I suppose it's one way to kill time until season 6 starts:

Fans of the Game of Thrones books and TV series have long quarreled over who the true hero of the story is. […] Every time a character seems to be developing into a protagonist, he or she is brutally killed. […]

But several main characters remain. And in order to determine the one true hero of them all […] we must turn to math.

Andrew J. Beveridge, an associate professor of mathematics at Macalester College, and Jie Shan, an intrepid undergraduate, decided to turn the world of the Game of Thrones books into a social network using network science, a branch of applied graph theory that draws from several disciplines, including economics, sociology, and, computer science, to examine how information flows from one thing to another. […]

Unsurprisingly, Tyrion Lannister turns out to be a Very Big Deal. 1

[Via The Morning News]

  1. It would be weirdly satisfying if the writers of the TV version of the story end their version of the tale a couple of seasons from now with Tyrion still alive but far away from the action, a figure whose long term importance will be seen to lie in his having provided the Mother of Dragons with some useful pointers in the degree of pragmatism required in order to rule at a crucial moment.