I don't think the public is going to understand BitCoin for a long time. Many people don't know the difference between Google and their browser's address bar. Even for early adopters, BitCoin needs a better marketing to inspire confidence.
Well, the article is going to help that. Despite its title most of it is a very shallow overview of the currency in general while mentioning how the rate has fallen and some examples of how it is not universally accepted. Finally, in the second to last paragraph, it offers up the hypothesis that it was a speculative bubble.