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Doubtless the economic downturn will come to an end in time, but its an open question about the impacts of address exhaustion and the address aftermarket on the routing table. It's also the case that an economic recovery, if it occurs in the coming months, will increase the level of consumption pressure on the remaining pools of addresses in the North American and European regions, so the larger picture here of network growth and its impact on the size of the routing system is an interesting question.