Business reporters and talking heads are tripping over themselves to predict the next bubble. It’s the least they can do after so many of them fueled the dot-com and real-estate booms and busts that tanked the economy and robbed millions…

Bob Costas is tired, exasperated even. You can see it in his eyes—that is, if they aren’t serving as a cautionary tale about the dangers of Botox. He shrugs, he sighs, he shakes his head. The NBC sportscaster is tired…