Unchanging Points of Light

Prior to the emergence of navigational technology, the captain of a ship relied on unchanging points of light in the nights sky to navigate his vessel in the darkness. These celestial objects were so well known and behaved so precisely that you could trust your life, your vessel, and all of its valuable contents to their guidance. You still can, if you understand them well enough. Over the last 200-300 years our world has abandoned the idea that there are eternal, reliable, and absolute pri...