Technology editor Steve Caplin looks at the dangers of using Excel for sophisticated projects such as the Test and Trace Fiasco, but also other multi-billion pound blunders. He hopes flying taxis will be buzzing around the 2024 Paris Olympics, admires the chutzpah of Valencia's ventriloquistic bid to be European Capital of Innovation, points out the dangers of searching online for celebrities like Graham Norton - with scammers lying in wait - and looks at a study that says we've all been making tea wrongly for years.
