11th May 2007, 6:37 AM
Not really "any" area so much as specific "trigger locations" on the map. Still, that's usually enough.
"On two occasions, I have been asked [by members of Parliament], 'Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?' I am not able to rightly apprehend the kind of confusion of ideas that could provoke such a question." ~ Charles Babbage (1791-1871)