Deep time is one of humanity's big discoveries: there's a LOT of history, and the vast majority of it was nothing like today. All your shorelines, mountains, po

Deep time is one of humanity's big discoveries: there's a LOT of history, and the vast majority of it was nothing like today. All your shorelines, mountains, political boundaries, and holy lands are just coincidences of this moment in time; none are ancient and none will last.