How the heck did they do it? How did Polynesian navigators, over the course of thousands of years, find their way from one little sand speck of land to another in the vastly vast vastness of 25 million square miles of ocean? This is before Google Maps, remember — even, if you can believe this, before MapQuest. How in the world did Pacific sailors set sail from one sliver of land in their log canoes and actually, on purpose, find their way to another? This video gives us a few hints.