Do your own research:

https://www.amazon.com/gp/product/B0BKGNLL53/ref=as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B0BKGNLL53&linkCode=as2&tag=httpwwwchanco-20 />

So I don't see the big deal. Both globe earth and flat earth are being taken on the authority of videos. In the case of globe earth basically everything is coming from NASA directly or a reference to NASA for Flat Earth it seems to be coming from a several sources. There are some GE people who do experiments as well but the overwhelming majority seems to basically be NASA said X or Y. FE people found holes in the GE model and vice versa and it seems FE resonates better with scripture, doesn't offend the senses as much as GE and you don't have to leave the planet or hand wave refraction, thus the appeal to the FE model. I don't see anyone on here saying you need to build your own satellite and rocket to "do your own experiment" lol. 

As far as the firmament goes I haven't seen a single GE proponent address this issue other than waving it away saying "well that's just what they thought at the time" or saying "it means atmosphere" both of which seems to create more problems than it solves. Do you happen to have quotes or any sources on how they addressed this if most of them, according to you, believed in a GE model? 

Government Docuмents that site a "flat non-rotating earth"

https://ntrs.nasa.gov/citations/19890005752
https://ntrs.nasa.gov/api/citations/20070030307/downloads/20070030307.pdf
https://www.nasa.gov/centers/dryden/pdf/88507main_H-2179.pdf
https://apps.dtic.mil/sti/pdfs/AD1107786.pdf
https://www.cia.gov/readingroom/docs/CIA-RDP86-00513R001343720008-3.pdf
https://www.researchgate.net/publication/235109946_Computationally_Efficient_Algorithms_for_Estimating_the_Angle_of_Arrival_of_Helicopters_Using_Acoustic_Arrays
More in this video:

44 GOVERNMENT DOcuмENTS ADMIT THE EARTH IS FLAT AND NON ROTATING
https://www.bitchute.com/video/4ASpxMRkzIh7/



The video below gives a possible explanation for the distance discrepancies on the map.  It's from the guy who discovered why the time zones are so strangely wonky to hide the flat earth.

How Maps are Manipulated to Hide the Flat Earth by Hervé Riboni

Pinned by Taboo Conspiracy
@tabooconspiracy

You are welcome to skip my introduction that lasts the first 6 minutes of this video.  I only tried to simplify it so that the argument is more understandable.  Having crossed the Atlantic eight times and circuмnavigated the entire flat earth for the Whitbread 1993-4 race, based on his sailing experience Hervé noticed there was a problem with nautical mile distances in the north and south.  In this video, Hervé basically proves that map scales are not legitimate.  Road maps have been artificially stretched to hide the fact that driving distances don’t match the distances of nautical mile straight pathways of airplanes and boats.  Driving distances cannot be altered but nautical mile pathways of airplanes and boats can be altered.  So, in order to hide the fact that the driving distances and the nautical miles straight path distances are not the same, the Cabal stretched road maps to hide the flat earth.  It’s a very fascinating discussion and another huge win for the flat earth.  Thank you Hervé!

Aren't maps known not to be to scale which is just a limitation of projecting a sphere to a flat plane. Like Africa looks the size of the US when it's massive. Or is this just talking about maps for specific states or something?