Simply put, the sky and heavens DO NOT WORK with ANY FE model where everyone lives on one side of it. Period.
Rotation, Axis, 2 Points
First, Geometry 101.
Any rotating body has an Axis of Rotation - a line between 2 points ("North Pole" (NP) and "South Pole" (SP)). I will use 3 examples.
1) A sphere. Take a ball and rotate it on your finger. On top you will see a SINGLE point - NP. On the bottom (your finger), you have a SINGLE point - SP. At its widest, you have its equator.
2) A disk/plane. Take a dish and rotate it on your finger or stick. On top you will see a SINGLE point - NP. On the bottom (your finger), you have a SINGLE point - SP. At its widest, you have its equator.
3) Disk flip. Take a coin and flip it. On one edge you will have a SINGLE point - NP. On the opposite edge you will have a SINGLE point - SP. At its widest, you will have its equator.
"Motion is Relative"
Second, if you take those shapes and make THEM stationary, the sky/heavens (you) will appear to rotate around an observer on the surface. The Axis of Rotation REMAINS THE SAME (NP - SP). 2 new SINGLE points appear in the sky/heavens. The "North Celestial Pole" (NCP) above the NP. The "South Celestial Pole" (SCP) above the SP. The Celestial Equator (CE) will be above the object's equator.
What works and doesn't work
1) Sphere. This WORKS. Above a SINGLE point NP, you have a SINGLE point NCP (center of northern star trails ~Polaris). Above a SINGLE point SP, you have a SINGLE point SCP (center of southern star trails ~Sigma Octantis). The CE is above the equator.
2) Disk/Plane. This DOES NOT WORK. Above a SINGLE point NP, you have a SINGLE point NCP (center of northern star trails ~Polaris) - good... But, the SCP is above the true SP, BELOW the NP, UNDERNEATH the Earth. This CAN NOT be seen from above the disk/plane. The CE is NOT between the NP and Antarctica but is the EDGE of the disk beyond Antarctica. There is no place on Earth that is a SINGLE point that the SCP can be above.
3) Disk flip. This DOES NOT WORK. Above a SINGLE point NP, you have a SINGLE point NCP (center of northern star trails ~Polaris). Above a SINGLE point SP, you have a SINGLE point SCP (center of southern star trails ~Sigma Octantis). The CE is above the equator... BUT... the sky/heavens/Sun/Moon etc. would only appear for 12 hrs EVERYWHERE on Earth then disappear for 12 hrs EVERYWHERE on Earth. Also, the land masses on the surface are wrong.
Conclusion
A disk/plane with people living on just one side does not work. The sky/heavens are all wrong. You ABSOLUTELY MUST have a SINGLE point SP on the Earth (with its corresponding SCP in the sky). Therefore, FEers (The FE Society), must get rid of this type of model.
Therefore, the FE MUST have people/land masses/etc. on BOTH sides - a dual Earth model. At least JRowe is going "in the right direction".
Furthermore, discussions of UA, sunsets/sunrises, travel distances, etc. are worthless when the basic model is demonstrably wrong. What is the point of debating "how many angels can dance on the head of a pin" when there is no "pin"?