Cryptocurrencies - Short-Term Volatility and Challenges to Long-Term Sustainability. Mr.Gopi Devaraaj talks about the security involved in the use of Bitcoin. He shares the digital evolution in the growing world. Topic: Cryptocurrencies - Short Term Volatility and Challenges to Long Term Sustainability This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx