@fresco,
fresco wrote:
One last time: the use of the word "truth" has nothing to do with "objective reality" unless you are a naive realist. It has everything to do with consensual agreement.
The scenario of any two people discussing the shape of the earth THEN would only have been in cases of agreement or disagreement prior to Columbus's voyage or similar practical problems. Most of the time "truth" did not apply. Nobody asked questions about the shape of the earth!.
Only "philosophers" from our era with nothing better to do could invent a scenario where "two friends were discussing the shape of the earth in 1400" for no apparent reason !
But, isn't it true that people did believe that the world was flat in 1400? So, if (as it seems) your view is that their consensual belief that the world was flat means that the world was flat in 1400, and if in your view, our consensual belief in 2010 that the world is round means that the world is round in 2010, I was naturally wondering when the world changed it shape from flat to round, and how it happened that there were no reports of such a stupendous cosmic event.
But, on the other hand, if all you are saying really is
not that the actual shape of the Earth changed sometime between 1400 and now, but only that the consensual beliefs changed between then and now, then there really was no cosmic event, and the only event was a change of
belief. In which case, of course, there would have been no such cosmic event to report. I hope you see what I am arguing. It is simply that if you are right then it is simply amazing not merely that there are not reports of the change in shape of the Earth, but that there were even any people left on Earth. But if I am right, and it was only the beliefs about the shape of Earth changed, and not the actual shape of the Earth, then it is understandable that there were no such reports, and it is understandable that there were still people alive after the change of belief. Now, what do you think is more likely: that there was a change of the actual shape of Earth, or that there was only a change in the
belief about the shape of the Earth? Any views about that?