In the two months since Britain voted to leave the European Union, its government has done little to clarify where this project is going. It would be wrong to expect a detailed plan, because the terms of exit and whatever arrangements follow must be negotiated. But surely a statement setting out priorities and basic principles wasn’t too much to ...

  Financial crises are becoming more frequent as markets and the rules that govern them grow ever more complex. New research suggests that this is no coincidence — and that a simpler system would be a lot more resilient. Forward-thinking officials have long argued that financial regulation needs to be simpler. In his much-quoted speech “The Dog and the Frisbee,” ...

  Quantum mechanics, Carl Sagan once observed, is so strange that “common sense is almost useless in approaching it.” Scientists still don’t understand exactly why matter behaves as it does at the quantum level. Yet they’re getting better at exploiting its peculiar dynamics — in ways that may soon upend the technology business. One of the most interesting applications is ...