Will the craze for the cryptocurrency started as a joke end in tears? We delve into the world of Dogecoin and ask why people are investing and what the consequences might be. We hear why amateur investors, Vicki Richards from Philadelphia and Erik van der Zanden in the Netherlands, decided to buy Dogecoin. Plus, Kevin Roose, a tech columnist with the New York Times explains why the last year of financial trials and tribulations have made cryptocurrencies attractive to some seeking to make a fortune. And David Gerard, a cryptocurrency sceptic and author of Attack of the 50ft Blockchain, tells us why he thinks the crypto boom will turn to a bust. (Photo of visual representations of digital cryptocurrencies, Dogecoin and Bitcoin. Photo by Yuriko Nakao for Getty Images).