Join Date: Mar 2005
Location: Calgary, Alberta, Andorra.
Interest: hiking, backpacking, scrambling, climbing
*Nothing* can replace having and using a brain.
Anyone who blindly trusts an instrument or a computer or another person despite all obvious signs to the contrary is rather beyond help. The failure of users to use the system properly is not a failing of the system. the use of cheap, basic devices that aren't intended for metre-by-metre navigation is a user failure. An inability to recognise when the system might have glitched is evidence of brainlessness, and suggests that the user would have been just as bad off without the glitch.
As a teenager, I once looked at a map, didn't look at the street, and told a driving friend to take the next left. She asked whether I was sure, and I said we definitely needed the left. So she proceeded to turn left - the wrong way onto a one-way road. I, of course, had been unaware we were in a place with one-ways, and should have specified 'the next safe and legal left'. But whether it's a human giving you directions or a GPS unit, when you put away your brain, you're asking for problems.