You cannot look up at the stars and tell where you are. You only know where you are in this kind of navigation by memorizing where you sailed from. That means constant observation. You have to constantly remember your speed, your direction and time. You don’t have a speedometer. You don’t have a compass. You don’t have a watch. It all has to be done in your head. It is easy-in principle-but it’s hard to do.
The memorization process is very difficult. Consider that you have to remember those three things for a month-every time you change course, every time you slow down.
Quote by Nainoa Tompson, from “On Wayfinding” in Hawaiian Voyaging Traditions