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A pile of Bitcoins are shown here after Software engineer Mike Caldwell minted them in his shop on April 26, 2013 in Sandy, Utah.
Bitcoin, the anonymous cyber currency, has had a wild few weeks. It's gone from less than $300 per coin to more than $900 just a few days ago back down to just over $600 today.
On Monday there was a congressional hearing on the currency for the first time, which gave it just a hint of legitimacy. It's technically possible to become a Bitcoin millionaire, but what's the likelihood?
Tess Vigeland talks to Ashlee Vance from Business Week about investing in Bitcoin the currency's ups and downs.