With GPS systems and other geographical technology being as sophisticated as it now is, do lighthouses still serve an integral purpose? Are they more now just in case the captain/crew lapses on the monitoring of navigation systems? Obviously lighthouses are more immediate and I guess tangible, but do they still fulfil a purpose beyond mitigating basic human error?
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Outside of still serving a purpose for yachtsman it still serves a great purpose for commercial trades as well. Signals are often blocked or jammed and we rely heavily on landmarks and lights to navigate safely as often the signal is jammed along the coastlines which are also the busiest sailing areas.
Within western europe the GPS signal is stable as long as a war doesnt break out. Outside of that tho in areas as the med, black sea, red sea etc etc the signal is very often not stable / jammed
Source: am a mercant navy captain
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