As bitcoin's price continues to surge towards $5,000, CNBC's Tom Chitty explains whether the rollercoaster ride of cryptocurrencies could make you rich. ----- Subscribe to CNBC International: http://bit.ly/1eiWsDq Like our Facebook page https://www.facebook.com/cnbcinternational Follow us on Instagram @cnbcinternational Follow us on Twitter https://twitter.com/CNBCi Subscribe to our WeChat broadcast CNBC_international