I like how Matt summarized his views. I think China will become the worlds superpower soon enough, once more and more become educated there. Past that, corperations will continue to merge, and there will be less companies, but bigger ones at that in the next 100 years. And if you happen to notice a large degree of individual business's/chains amongst this, expect these to be secretly or publicly owned by existing corperations. This is somewhat common now, as the years go buy, companies buy other private companies without announcing it, while keeping the seperate names and managers. As to oil, good job on explaining the oil reserve, I think they'll use oil till they get the last few drops, then slowly shift over to technology that could have been introduced a bit faster.