[SunkenCiv]

There were generations which lived on the water, and they had the ancient version of hibachis to cook out there. Ate a lot of sea life of course. The expansion probably happened in relatively few decades during a period when island populations got overcrowded.

[Carry_Okie]

There were generations which lived on the water, and they had the ancient version of hibachis to cook out there.

Mid ocean gyres are biological deserts. I wouldn't have thought they could catch enough fish to raise a family that way. Of course, there would be a steady crop of barnacles!

Would that "hibachi" be chipped stone? I'm assuming thse have been found.

[Carry_Okie]

There were generations which lived on the water, and they had the ancient version of hibachis to cook out there.

How would they gather and transport sufficient fuel? They could float it on a raft, but keeping enough dry would be problemataic.