On Sun, 09 Dec 2018 07:32:41 -0700, Chris L Peterson
wrote:
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.

True, and that includes hiking. However you must still decide which
route you want to take, you cannot just "point yourself" to the
destination.