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Wayfinding Redundancy I

Tehran: which way is?
 

An arrow pointing the way to Mecca on the ceiling of a Tehran hotel room – a simple enough task for a GPS enabled mobile device. Given the relative predictability of everyday life, and the multitude of actual and relative directional cues – in what contexts is a Muslim really unlikely to know the direction of Mecca? What other more emotional needs could a digital direction finder meet?