Thanks comments re: books.
On GPS there is a body that is quite objectional and reverts to almost mocking tones when they say "hey what's wrong with a map" but that surely misses the point of what the objectives are.
At some point even a bespoke aeronautical chart would have been seen as high tech. Same goes for radio nav.
Surely we use the best tools that are available in terms of accuracy, least work loads and improved safety. If that relates to nav a GPS is by far better than a map.
I have to say actually for most local VFR flights we don't use anything but look out of the window - do we??!!
It seems very foolish to argue the case for old tech as a principle tool.