adaviel writes: LORAN (Long Range Aids to Navigation) is an electronic navigation system using low-frequency radio, used by many boaters (including me) before GPS. It has an approximately 200m accuracy and is a functional replacement in case GPS fails or the US implements selective availability in time of war. The US Coast Guard intends to turn it off starting February 8.
The Tao is like a stack:
the data changes but not the structure.
the more you use it, the deeper it becomes;
the more you talk of it, the less you understand.