uhmm... is it me or has nobody noticed these great new inventions called the speedometer and odometer? If you ever fly on a marginally good international flight, the plane will give information on the speed and distance traveled. and if you don't trust it, you should take your own device on board. Parsifal argument is absurd, we should assume that there has to be a mechanism for increasing the speed (bird nudging and/or magically fast and positioned), for which there not only is an absence of evidence for, but evidence against, whereas he refuses to admit a mechanism for shortening the distance (aka if the earth was not flat). that type of logic rivals troll threads. btw I've already shown that the flat map doesn't work, because it inaccurately predicts the area of Colorado by over 50%