Actually, one of my favorite blogs is http://www.greaterfool.ca http://www.greaterfool.ca ;) I'm familiar with the greater fool theory. But people buy commodit

Actually, one of my favorite blogs is http://www.greaterfool.ca http://www.greaterfool.ca ;) I'm familiar with the greater fool theory. But people buy commodities, currencies and financial instruments on this expectation of increased future valuation. There could be a case made that the greater fool theory is in effect for bitcoins, but it can't be said that it is the case simply because people expect higher valuation in the future.