Once again, the cryptocurrency Bitcoin is making headlines for rocketing in value. As more companies back it, could it be here to stay? And if so, how is it changing our world? Katty Kay and Carlos Watson look at Bitcoin’s latest price surge and discuss how it and other digital currencies are being adopted around the globe - from the U.S., to Venezuela, to China.

Nathaniel Popper is a New York Times technology reporter and author of Digital Gold: Bitcoin and the Inside Story of the Misfits and Millionaires Trying to Reinvent Money. He’s been following the Bitcoin story for nearly a decade, and explains how it is changing our relationship with money.

Lily Liu is an entrepreneur who has worked with cryptocurrencies for more than five years. In 2018 a company she co-founded was sold to one of the largest cryptocurrency trading platforms for more than $100m. She says companies are backing Bitcoin as an alternative to gold.

A co-production from the BBC World Service and OZY Media.