As the mortgage and financial crisis continues to notch more victims, the question on many economists' minds is not whether a recession will happen, but how deep it will get and how long it will last. But one prominent voice thinks the high-flying finance industry isn't going to bounce back -- and that we'll need to look elsewhere to set the U.S. economy back on firm footing.

Eric Janszen is an angel investor and founder of the contrarian market website iTulip.com, which The New York Times credited with "accurately predicting that the [internet] bubble would pop." Now Janszen believes the American economy needs a fundamental restructuring away from its foundations in finance, insurance and real estate. His prescription: a new bubble based on green technologies. In a widely discussed Harper's article in February, "The Next Bubble: Priming the Markets for Tomorrow's Crash," Janszen argued that clean tech is the only sector that could create enough "fictitious value" to replace the losses from the housing bubble, if only temporarily. ...   more »