Just found this.
"Bitcoin is big right now, probably too big for its own good. Since a Bitcoin has no value beyond what someone is willing to pay for it, the price of Bitcoins tends to change quickly. Indeed, in mid-January a single Bitcoin was valued at $15, which makes people who bought Bitcoins back then and sold them at $260 apiece yesterday very successful investors.
The currency’s popularity (and therefore price) increases in international markets that have
become unstable—say, when a government threatens its citizens with capital controls and currency restrictions, as Cyprus did last week.
“Bitcoin is a very volatile asset, and the recent developments in the price of Bitcoins do have some of the characteristics of an economic bubble,” says Professor Magnus Thor Torfason, Assistant Professor of Business Administration at Harvard Business School."
The fuck?