If it is a theory, then we can apply this idea called "scientific method" and develop a testable hypothesis, and then... Wait, the flat earth idea has been shown to be false: http://en.wikipedia.org/wiki/Spherical_Earth and Earth is an oblate spheroid. "Round" could be interpreted as like a circle and two-dimensional, just those flat-earth people want you to think. http://en.wikipedia.org/wiki/Earth These flat earth "alchemists" are just like those who claim that human activities could never affect the climate http://www.sourcewatch.org/index.php?title=Climate_change_skeptics, there are endless oil supplies on earth for human consumption, http://economics.about.com/cs/macroeconomics/a/run_out_of_oil.htm, HIV does not cause AIDS http://www.ourcivilisation.com/aids/not/abstract.htm, and the only way to study whales is to kill them and sell the meat in the supermarket http://www.icrwhale.org/QandAjapanresearch.htm. Aaahhh these fucking assholes.