That's why I was putting more emphasis on the word "domination" than on "monopoly". I agree that WalterBright may have been making a very dense and mostly irrelevant point, to which the proper response may have been "so what?". I simply disagree that this is how we should interpret it. Rather I would give the benefit of the doubt and take him as making a real, germane, substatial-but-misguided libertarian talking point. That is, there are legitimately people in the libertarian camp (I was one of them!) who falsely conflate deregulated markets and competitive ones.