There's no indication that handling cash increases your chance of catching COVID-19. But that hasn't stopped countries around the world from looking at digital currencies.
More than ten years since blockchains were developed, their usefulness is only just being discovered.
National cryptocurrencies could make payments faster and prevent crime, but they come with their own risks.
How culture can inform technological innovations.
Blockchain technology is familiar to us in the form of digital currency bitcoin. And if it makes it way to the mainstream, could it change the way the world does business forever?