It is unnecessary here to dwell upon the worldwide distribution of the two rats Mus rattus and M.
Intertwined worldwide financial systems.
That is something like what I expect will happen, but on a worldwide scale.
The Civil War caused enormous losses to the merchant marine, and the worldwide substitution about this time of iron steamers for wooden steamers and sailing vessels contributed to prevent a recovery; because, although ship-building was one of the earliest arts developed in the colonies, and one that was prosecuted with the highest success so long as wooden ships were the dominant type, the United States has never achieved marked success with the iron steamer, and the law has precluded the registry as American of vessels built abroad.
This is made possible by technology and the Internet, which is used to connect buyers and sellers worldwide and bring information (world commodity prices) to the far reaches of the globe.