No Tom,
In transportation distance matters as well. Mileage is needed to ensure you don't run out of fuel and die. Using the round earth coordinates to traverse both halves of the world or in your model both hemiplanes has yet to cause a large number of flights or ships to suddenly run out of fuel mid trip.
They would have known from previous trips and assessments of the Round Earth lat/lon readings how much fuel they would need to bring for xxx Round Earth miles.
If you travel 300 miles on a road trip, according to your GPS, and your tank is half empty you have an idea on how much fuel you need.
The miles of cabling that run under the ocean to connect the continents and create "the internet" had to be physically made and laid. As did all of the continental cabling that connects California to New York, Paris to Krakow etc. These are physical lengths of cabling that had to be manufactured and placed along carefully measured routes that just so happen, in your opinion, to match up perfectly with the Lat/long coordinates.
How do you know their methodology?
To answer your second question, because they had to apply for permits in all municipalities in order to establish the cabling lines in the first place. When installing public infrastructure along roadways, each local government requires zoning approval in the form of schematics, materials properties, engineering assessments, environmental assessments etc which are all kept on public record. When crossing national borders, the permitting process becomes even more complicated. Ever wonder why road crews spend a lot of time with surveying equipment prior to a major road overhaul? It's because in the event that they hit the buried cabling, water lines or gas lines bad things happen. They have to accurately measure the roads and compare their measurements to the building permits on file to ensure that they don't blow up a city block or create a 2 foot high geyser or you know get any of their employees killed. Almost all of the time, they're successful at this endeavor, so...
To address your first rebuttal. Eh, no. That's not how long distance air travel works. When a new airplane design is created, they don't just load it up with people, launch it and hope no one dies along their maiden voyage so that they can track how much fuel they used for future flights. It's not like running out of gas in a car where you can pull off the side of the road and wait for AAA to come by with a gas can. An airplane would crash, people would die and most likely that company would be sued for wrongful deaths by family members of every passenger probably leading to bankruptcy. Being as how this doesn't happen routinely, it's safe to conclude that they take distances based on the RE coordinate system, projected fuel performance as established during the design and modeling process and reasonable margins of error to ensure that they don't run out of fuel half way there.
You sound like you're getting desperate Tom. Your arguments don't even make any sense anymore and you're purposefully avoiding discussing the real points of the argument.
Distance is measured, time is measured, speed is defined by those 2 measurements and can be measured as well. When you know 2, you can solve for the 3rd. Round earth model coordinate systems have routinely delivered people to their destinations for a long time. The FE model doesn't even have an accurate measurable map to test navigation with.
If the earth were truly flat, it would be simple to create a flat map with no distortion that accurately measures all of the continents and oceans. This map doesn't exist, therefor reductio ad absurdum the earth can't possibly be flat. Done.
Thank you,
Critical Thinker