Of course: this kind of thing has happened over and over. Reality will settle in, the giddiness will fade, the market will overreact, fortunes will be lost, pe

Of course: this kind of thing has happened over and over. Reality will settle in, the giddiness will fade, the market will overreact, fortunes will be lost, people will lose their jobs, and attention will move along to something else. At least a handful of solid new businesses will survive, though, and even thrive. Twenty years from now, whatever it is that the new technology is actually good for will seem obvious in retrospect, and the present breathless excitement will seem comical.