Some predictions are far out on a limb, while others could easily become reality. I'm about to make one that's in the latter category. I predict that Nvidia (NVDA 0.01%) is about to leap past Microsoft (MSFT 0.89%) to become the world's most valuable company. And when I say "about to leap past," I mean it could happen within the next few weeks or even days. Nvidia's already breathing down Microsoft's neck I'm by no means going out on a limb with my prediction. Nvidia only needs a gain of around 4% for its m ...