nor does he know the linear flow of location.
Carribean Pirates never came into contact with the Norse Vikings, since you know, they were in Norway and neighboring areas.
Because of the reputation.
By the time pirates were in the Caribbean, Scandinavia had some Kingdoms and there were no more Vikings.
They wern't solely Scandinavian. And I'm sure not all of them up and said "oh shoot, we got a kingdom, let's quit and go to unproductive farming." As I said, there were records of contact and it usually ended in the people giving a wide berth to Vikings simply due to reputation even if it was a couple of small time groups here and there.