In the last decade or so, the American economy has been undone by a series of bubbles. First there was the dot-com boom, in which start-ups without business models were suddenly worth billions of ...

Between 1996 and 2002 , a new bubble was set by a wave of internet start-ups with mega valuations that defied traditional logic and norms. A new benchmark for assessing the intrinsic worth of such ...

Special effects iMessages, which debuted way back in iOS 10 and are available as one of four chat bubble effects or animations that momentarily take over the whole screen. There are 12 options in all.