In this edition of Tech24, we ask what's to become of Facebook's cryptocurrency Libra. Announced in June, many countries in Europe are opposed to it, citing systemic financial risks. France has said it will block it altogether. Plus, Dhananjay Khadilkar tells us more about the discovery of water vapour in the atmosphere of the exoplanet K2-18b. Last but not least, we try the Fairphone 3, a sustainable and modular smartphone.