In 2017, cryptocurrency looked like another story of tech success. Skyrocketing prices for Bitcoin and other digital currencies turned early adopters into millionaires, and a niche product quickly gained mainstream appeal. But the infrastructure around the technology simply wasn't there, and the bubble burst, leaving many investors badly burnt. Now much of the attention is around the blockchain systems that underpin cryptocurrencies. Large firms have embraced blockchain startups, convinced that this is revolution that will change the world if it can be managed maturely.   See acast.com/privacy for privacy and opt-out information.