Ugly day if you own nothing but artificial intelligence companies. Normal decent day if you own anything else. To which I say it's the revenge of the plain vanilla companies that got left by the wayside as the high-flying soaring AI stocks moved into the stratosphere via parabolic.And that's how you wind up with a day where the Dow dips 246 points, S&P plunges 1.07%, 07 and the NASDAQ filled with all AI stocks just plummets 1.69%. With Polcom stock collapsing after a good but poorly received quarter, we now ...