eg new telephones, smart dishwashers and postit stickiness. Those things come into existence not because scientists happen to have the ability to make them and because we must give scientists something to do. Rather, they come into existence as a response to how we humans are presently collectively experiencing and envisioning the world.
The primary reason for GPS’s not to have existed in the Middle Ages, is not want of the state of technological advancement needed to produce GPS’s, obviously, otherwise humans would have been deliberately working to get to that state as soon as the Middle Ages. I don’t think they were. I think none of the things they were deliberately doing had deliberately anything to do with GPS’s.