If a little knowledge is a dangerous thing, what more when one glimpses at eternity? BBC's David Malone has recently released an interesting documentary we thought the other math-lovers here would fancy, titled "Dangerous Knowledge."

The film covers four mathematicians: Georg Cantor, Ludwig Boltzmann, Kurt Gödel and Alan Turing. While they were noted for being among the most brilliant minds in the realm of mathematics, all four met the same tragic end of going insane and committing suicide. The film will tackle each of these men's inner thoughts, and the work that would eventually have them immortalized in human history... and locked away in mental asylums.

We've posted a video below,w if you're thoroughly interested in viewing the flick. Be warned, however, that this could take a while - Dangerous Minds is one-and-a-half hours long. Find yourself a comfy chair, a drink, and maybe some snacks - this could be a most interesting math lesson.