Iris scans: proof of our humanity in an AI future, or marketing gimmick?
b'Madeleine Finlay speaks to the Guardian\\u2019s technology reporter Hibaq Farah about Worldcoin, a new cryptocurrency offering users tokens in exchange for a scan of their eyeballs. Farah explains what the motives behind the company are, why they think we all need to become \\u2018verified humans\\u2019, and how governments have responded to the project. Help support our independent journalism at theguardian.com/sciencepod'