While lockdowns were arguably necessary, Adam Wagner warns that when governments give themselves drastic powers, they don’t always give them back. Stephen Buranyi uncovers how Big Pharma is using its vaccine success to double down on profit rather than protect us. Gabriel Scally and Sunetra Gupta debate whether it's worth trying to eliminate Covid altogether. Plus: an interview with Carlo Rovelli, master of the universe, while Julia Bell explains how her ex-student got radicalised online.
Interest in “trolleyology”—a way of studying moral quandaries—has taken off in recent years. Some philosophers say it sheds useful light on human behaviour, others see it as a pointless pursuit of the unknowable