Interesting reasoning. A bubble occurs when an economic sector experiences growth that cannot be explained by the fundamentals (supply and demand). Overvaluatio

Interesting reasoning. A bubble occurs when an economic sector experiences growth that cannot be explained by the fundamentals (supply and demand). Overvaluation is implicit in bubbles. Keep that in mind while reading the following sentence from the article: "No, the biggest problem [in 2000] was that no one had any idea how to value [tech] companies." So, the problem with the 2000 bubble was that there was a bubble. However, it's different now because Wall Street knows to look at user-bases and page views, and the companies don't hire as many sales people as they did in 2000. That doesn't seem like a serious analysis of an important topic by an expert.