I think that's a very good question. You have to ask, why in this situation would two be enough? In other markets we might think that two is not enough. You have to remember that you're comparing. We've got an imperfect regulator for imperfect competition.
We have to ask ourselves, are there characteristics of that market that suggest that the imperfect competition is not going to be so bad that two is so bad? The answer I think is really clear. The nature of the cost characteristics in this industry is that you have very high fixed sunk costs and very low incremental variable costs. Those kinds of industries with those kinds of characteristics lead to very extensive and strong price competition.