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This week Click looks at how tech can help us get back to work. We find out about how a digital twin of St Pancras International station has been built to help protect commuters, and the way offices are using computer vision alert systems to help employees keep their distance. We hear about the latest developments from Silicon Valley from our new tech correspondent there, and when all the world's an internet call, Marc Cieslak discovers whether technology can help bring theatre back to life.