The next leg of global technology spending is being written by artificial intelligence, and the numbers now coming in point to a decisive break from the cautious budgets of the past few years. Instead ...

Tech leaders are beginning to worry about the public’s underwhelming enthusiasm for their plans to remake the world with artificial intelligence. Will that burst the bubble?

What do supersonic jets and artificial-intelligence data centers have in common? They both need lots of power to make them go. That commonality, and the seemingly insatiable demand for electrons from ...