I addressed it here:
6: The Flat Earth hypothesis cannot be assumed true for the sake of argument in the debate forum since its validity is the topic of debate.
My mistake. I forgot it because I dismissed it because it was still irrelevant to my point. FET's validity is
not the sole topic of debate on these forums, by any stretch. The fact that it's difficult to find two FEers who agree on every point of the theory attests to that. There's internal debate all over the place here.
One can't search for answers if one hasn't already assumed the premise; and it's a worthy premise to assume, because it's the one our senses most readily identify.
You seem to imply that we can assume FET is true in order to argue about it on these forums.
Yes.
If you want to argue about the finer points of UA or EA you must initially assume that the main points of FET are true, such as the conspiracy and the flatness of the Earth.
I disagree with the first half of your statement. I think there's room for UA and EA in a Conspiracy-free Earth, and I don't personally consider the Conspiracy to be a "main point". The second half, however, seems fairly obvious to me and I'm really not sure what point you're trying to make.
However, when examining the fundamental premise of FET, "The Earth is roughly flat all over", this assumption is invalid because the very flatness on a large scale is in question.
This is a misstatement of the "fundamental premise" of FET. The fundamental premise as far as I'm concerned is that the Earth appears to our senses to be flat in the places where the shape of the Earth can readily be examined. All else issues from that simple fact. It's why I say I must be provided with extraordinary evidence that the Earth is not flat to truly be convinced; I have not yet encountered that evidence.
The point is I have no problem with people referring to the idea of FET when arguing about UA, EA, or the Conspiracy for the sake of argument, but in any other context I think it is still a hypothesis.
And my point is that based on the dictionary definition of the word, FET is a theory.
For example if one were to state that FET has better predictive power or is simpler than RET in regards to navigation, I think in that context FET cannot be assumed as true and is not really a theory.
I don't believe that claim has been made, so I fail to see its relevance to the discussion.
This is supported by the fact that there is no flat earth map, no useful way to apply the predictions of a flat Earth.
Unfortunately none of us are cartographers, nor do we possess the enormous resources necessary to internally map the entire Earth.

[/quote]