Once again, Britain’s negotiators are talking tough, threatening a no-deal scenario as a long series of trade talks begins in Brussels. They’ve got a hard job ahead. Many aircraft engines have computer-based “digital twins” to keep them healthy and efficient—now that idea is being used to monitor human hearts. And a descendant of Vienna’s Rothschild family fights to regain a family foundation. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/radiooffer

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