On Wed, Sep 14, 2016, at 23:12, Steve D'Aprano wrote: > Yes it does. Even an infinitely large flat plane has a horizon almost > identical to the actual horizon.
Your link actually doesn't support the latter claim, it goes into some detail on why it wouldn't if it were infinitely large due to gravitational effects on light. Of course, the fact that the horizon is a short [in comparison to the size of the known world] distance away *is* evidence for a round Earth. It might "look the same", but it would contain features all the way up to potentially the edge (anything not obstructed by subjectively taller objects in front of it), it certainly wouldn't make sense not to see the opposing landmass across an ocean. > http://www.askamathematician.com/2012/08/q-if-earth-was-flat-would-there-be-the-horizon-if-so-what-would-it-look-like-if-the-earth-was-flat-and-had-infinite-area-would-that-change-the-answer/ -- https://mail.python.org/mailman/listinfo/python-list
