Interesting that they use this strategy. Essentially, high variance is good when the expected value of the game is negative. It increases the chances of succe

Interesting that they use this strategy. Essentially, high variance is good when the expected value of the game is negative. It increases the chances of success in a bad situation. The maths of this can be found in the article "A Rule of Thumb (not only) for Gamblers." Currently, this article is available free here: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.55.3467 http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.55.3...