It proves there is a force. If the disc is rotating, we'd observe something similar: and this is only one possible explanation.
Without a complete model, you can't be answered. There are too many possibilities to list.
The problem with this would be the centrifugal force would create a form of gravity. Depending on the speed, you would feel diagonal at all times, or on a higher scale, the earth would compress into a globe.
Perhaps. As I said, this is one possible explanation. It wouldn't be hard to answer those objections, however: merely include another force.
You now have a hypothesis that doesnt fit observation. Imaginary ad-hoc forces arent the way to go.
I think that's the quoting fixed.
It should fit observation easily; it just falters at Occam's Razor. I wasn't seriously proposing such a model.
For the record, I don't think the world rotates: I believe the Sun does however, and whatever is responsible for its motion would likely affect the Earth. Further details cannot be given until I examine the candidates for causing the motion of the Sun.
My point was only that it's easy to come up with an FE model that matches observations. The easiest would be to invoke God and divine will and testing faith to explain any observations that would seemingly imply a RE. Rather than taking shots in the dark (which is really all this is: there's no model specified, nor any made mention of), a better tack for those who accept a RE would be process of elimination. Could this mechanism be responsible? No, no, possible, no...
Eventually there'll be a mere handful of forces and mechanisms to be used in FE, some ad hoc, some not, and you've a far easier job of rebutting FE.
You're at an advantage of answering questions, and a disadvantage when it comes to answering them, and the reason for that is simple: there is no FE model.