Digital twins could save your life. Here’s how

Digital twins — virtual replicas of real-world things — are already commonplace in manufacturing, industry, and aerospace. There are highly complex digital models of cities, ports, and power stations — but what about people?  The idea of digital doppelgängers has long been confined to the realm of science fiction. But a new book presented at London’s Science Museum last week suggests the concept could be coming to life.   In Virtual You, Peter Coveney