Self isolation in extreme. Nobody knows for sure what language they speak, what they call themselves, nothing. We don't even know how many there are. What we d

Self isolation in extreme. Nobody knows for sure what language they speak, what they call themselves, nothing. We don't even know how many there are. What we do know is that they survived on a rather small island in Indian ocean with stone age technology for ... well we don't know because they don't want to talk to us. But they did get trough 2004 tsunami just fine. https://en.wikipedia.org/wiki/Sentinelese https://en.wikipedia.org/wiki/Sentinelese