On Sat, 8 Dec 2018 16:30:44 -0800 (PST), Quadibloc
wrote:

On Saturday, December 8, 2018 at 4:48:16 PM UTC-7, Davoud wrote:
Paul Schlyter:

It's like if a
professional geographer didn't know where Switzerland or China or USA
were situated without looking them up on a map, and if he wanted to
go there, he just dialed in the geographical coordinates on the GPS
of his self-driving car or self-flying plane and then let it take him
there.

According to a friend of mine who is a military pilot, what the
traveling geographer really does in the modern era is board a
commercial flight where a trained pilot dials in the geographical
coordinates on the GPS of his (largely) self-flying airliner and let it
take him where he wants to go. Barring a Lion Air-type incident, that
is.

It's true that a travelling geographer will indeed just get flown to, oh, say,
Lima. But if his real destination is Machu Picchu, he will still have to travel
by means that don't involve punching coordinates into a GPS to go the rest of
the way. The same applies if his destination is Auyantepui... he can take a
commercial flight to Caracas, but that's about it.

Even traveling in undeveloped countries in remote regions, the most
reliable way of planning and executing travel is using a map app and a
GPS.