“If you were around during the last technology boom and bust cycle of the early 2000s you were likely exposed to the concept of really big numbers. Countless business plans for all manner of ill-conceived ideas began with “If just 0.00001% of all internet users visit our site…” and used that as the core foundation of their revenue model. While it all seemed logical at the time, the logic of really big numbers had two fundamental failings.”
http://www.techrepublic.com/blog/tech-decision-maker/the-problem-of-really-big-numbers/