A sustainable Hawaii?

[olin137]

It may depend on the specific items - fuel, cars, lumber, etc come by surface ship, which is relatively efficient on a cost per unit basis. Also, there is always the factor that the more you ship of an item the cheaper the unit rate is. What may happen is not that the population growth is reversed, or at least significantly slowed, as much as an even more pronounced discrepency in income to cost of living.