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> Neat island, but I can assure you South Americans and Africans would have no issues invading it by boat.

> It would be a decent stronghold though for awhile I bet, but in the end desperation would lead to its discovery and pillaging.

So in a climate apocalypse scenario where people are starving and desperate and resources sparse, said people are going to be able to gather enough provisions and fuel to organise a weeks long trip across thousands of miles of open ocean in order to invade a settlement that is living at subsistence level. Right...