What IS the perfect number of colleges to apply to?

hmmmm...

http://learning.blogs.nytimes.com/2014/11/17/student-opinion-what-is-the-perfect-number-of-college-applications-to-send/?module=Search&mabReward=relbias%3Ar%2C%7B%221%22%3A%22RI%3A8%22%7D