Share this postReview: Exponentialwww.jeffnoble.netCopy linkFacebookEmailNotesOtherReview: ExponentialJeff NobleJul 28, 2011∙ PaidShare this postReview: Exponentialwww.jeffnoble.netCopy linkFacebookEmailNotesOtherShareKeep reading with a 7-day free trialSubscribe to Jeff Noble - "Notes from the Trail" to keep reading this post and get 7 days of free access to the full post archives.Start trialAlready a paid subscriber? Sign in