It's often said the value of social networking is O(n^2), which is basically impossible to overcome, versus n lg n, which makes the difference between 2 million

It's often said the value of social networking is O(n^2), which is basically impossible to overcome, versus n lg n, which makes the difference between 2 million and 20 million users a lot smaller (too tired for the math, sorry, maybe 20x?) instead of 100x.