By now, most people have some idea what Bitcoin is as well as some general knowledge about cryptocurrency. But, back in 2014, it was a fairly new concept. That's when CPR's Andrea Dukakis learned about a machine--sort of a Bitcoin ATM--and did a story on it. She bought $5 worth and watched its highs and lows over the years. We'll hear about that experience and then talk to an expert about Bitcoin's fluctuations and the rise of cryptocurrency. Joshua Ross is director of entrepreneurship at the University of Denver's Daniels College of Business and has taught about Blockchain, Cryptocurrency and Bitcoin.