When Andy Conrad spun Verily out of Google’s secretive research facility, X, he declared that the newly formed life sciences unit of Alphabet was on a quest to “defeat mother nature” — through “truth”. Verily began as a Google X for biology, experimenting with how its capabilities in data, artificial intelligence and sensors could be used to revolutionise healthcare. It is one of a series of expensive bets made by Alphabet to use funds from Google’s core business to tackle big problems, alongside the self-driving unit Waymo and the artificial intelligence start-up DeepMind.