I agree with your comment, yet I wish to pick a nit: > n(n-1)/2 > exponentially I see this a lot in mainstream media (who simply can't help themselves) and i

I agree with your comment, yet I wish to pick a nit: > n(n-1)/2 > exponentially I see this a lot in mainstream media (who simply can't help themselves) and increasingly so on HN (where we should know better): using "exponential" as a synonym for "explosive". I'd love for all of us to stop that. n(n-1)/2 isn't exponential growth, it's quadratic, and once you're at more than 10-ish team members the difference is enormous :-)