Time capsules preserve artefacts and memories so that people in the future can learn about a particular time in the past. Now scientists at the University of Southampton in the U.K. have come up with an innovative memento: a “memory crystal” that fits in your hand and contains the entire human genome. It’s essentially a manual that defines what makes us human. How could future generations use the genetic information in the crystal? Nimesh Pinnamaneni, the CEO of Helixworks, the company behind this technology, explains. We also hear from the founder of Memory of Mankind, an archive of human memories that’s located in a salt mine in Austria. It aims to preserve a back-up of human civilisation, including the crystal, in case we disappear. Instagram: @bbcwhatintheworld Email: whatintheworld@bbc.co.uk WhatsApp: +44 0330 12 33 22 6 Presenter: Hannah Gelbart Producers: William Lee Adams and Maria Clara Montoya Editor: Verity Wilde