Have you tried moving through a desert or a steppe in the dead of night, far from human infrastructure? It's damn dark, the land is literally darker than the star-strewn sky. Headlights give you only so much light, for the next 100-150m of the road maximum. Unless it's a really nice, well-maintained road, with reflector posts, etc (and usually it's not), it's really easy to lose your way if you drive a tad too fast. You either crawl, or choose to camp and wait until the morning light.
With a GPS map, you can proceed much more confidently. And a few hours may play a serious role in disaster relief.
So too can the stars, or proper time/speed/direction navigation.
I'm not saying GPS isn't useful. I'm saying it hasn't had a life changing impact for the masses that allows for a larger population (eg it's not providing more food, shelter, etc).
Have you tried moving through a desert or a steppe in the dead of night, far from human infrastructure? It's damn dark, the land is literally darker than the star-strewn sky. Headlights give you only so much light, for the next 100-150m of the road maximum. Unless it's a really nice, well-maintained road, with reflector posts, etc (and usually it's not), it's really easy to lose your way if you drive a tad too fast. You either crawl, or choose to camp and wait until the morning light.
With a GPS map, you can proceed much more confidently. And a few hours may play a serious role in disaster relief.