[tfinniga]

I really liked this small article about exponential growth. Exponentials don't really exist in nature, there are pretty much always limits.

http://radar.oreilly.com/2007/11/its-not-exponential-its-sig...

[Fomite]

Pretty much this. Growth to carrying capacity looks a lot like exponential growth for a bit and then stops. Assuming it is exponential is a recipe for sadness and disappointing earnings reports.