The AI business is changing in ways that will mean disproportionately bigger opportunities for some of its players.There's little argument that chipmaker Nvidia (NVDA 1.65%) has been the biggest beneficiary of the advent of artificial intelligence (AI). Its processors are the centerpiece of most of the world's AI computing platforms, and artificial intelligence-related products now account for the vast majority of Nvidia's sales. That's why the stock's up more than 1,200% for the past five years, in step wi ...