MIT Technology Review: Is the UK’s pingdemic good or bad? Yes.

Oscar Maung-Haley, 24, was working a part-time job in a bar in Manchester, England, when his phone pinged. It was the UK’s NHS Test and Trace app letting him know he’d potentially been exposed to covid-19 and needed to self-isolate. The news immediately caused problems. “It was a mad dash around the venue to show my manager and say I had to go,” he says.