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RE: How GPS Weakens Memory—and What We Can Do about It - Scientific American
This GPS for the visually impaired works 100% because a small error in GPS calculations could cost the life of the user who uses it.
On the other hand, it is good to know that science and technology also focus on disabled people, not just trying to conquer Mars or another planet.
Thanks for the reply! You raise a good point. I was thinking about it in the context of a memory aid, but you're right. In its original use for the visually impaired, there is no margin for error at all.