[spirographer]

Companies fill ecological niches. When new technologies emerge there is room for a new apex species/(company), and a few smaller wannabes. There just isn't unlimited room for large companies to emerge, and that is the principal reason why there aren't more googles and facebooks around. In the end it has very little to do with VCs and entrepreneurs, except for the ones who happen to be in the right place at the right time to take an as yet non obvious idea and turn it into something huge.

[strikelaserclaw]

I think this is probably the closest to the truth.