One-of-a-kind digital collectables, known as non-fungible tokens (NFTs), have boomed in areas ranging from music, sport and art. As the focus is on digital artists to seize this opportunity to potentially make millions for their work, the Guardian’s technology correspondent, Alex Hern, talks to Shivani Dave about the pros and cons of this emerging technology. Help support our independent journalism at <a href="https://www.theguardian.com/sciencepod">theguardian.com/sciencepod</a>
