@Merry Andrew,
Say, Bill, aren't you embarassed to post some of the silly drivel that you seem to thrive on? Would it be too much to ask you to stick to something you know something about?
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Well I am sure that you are an expert on the problems face by those who undertook long sea voyages by sail.
After all, I had only the records of the problems face by Europeans when they begin to under take such challenges, a people who can not compare to the superhuman island people you are referring to.
I am sure that your supermen island people, who could live on fishes, get Vitamin C from seaweed along the way, somehow carry enough fresh water for a many many months journey, and oh yes in ships that can laugh at hurricanes/tropical cyclones.
They surely did not need to spend a few hundred years like the European developing the art of navigation as by just looking into the heavens they could find their latitude and longitude within a few minutes.
You rather remind me of the nonsense that the History Channel likes to put out.
As an amusing side note, a woman is now undertaking rowing across the Pacific by herself. She is however not playing completely fair as she have a satellite phone, a GPS, water desalted or two, weather information by way of a short wave radio and a bottle of Vitamins along with her.
SO far she had reached the Hawaiian Islands from the West Coast and then had broken her trip by flying back to the main land. I am not sure when she is going to once more start rowing toward China.
To sum it up all and all you and farmerman are fools with little understanding of history of any kind.