“The world has no name, he said. The names of the cerros and the sierras and the deserts exist only on maps. We name them that we do not lose our way. Yet it was because the way was lost to us already that we have made those names. The world cannot be lost. We are the ones. And it is because these names and these coordinaes are our own naming that they cannot save us. That they cannot find for us the way again. Your brother is in that place which the world has chosen for him. He is where he is supposed to be. And yet the place he has found is also of his own choosing. That is a piece of luck not to be despised.”
― Cormac McCarthy, The Crossing
To get the final answer about flat earth one must travel to the edge of the Discworld, lean over the edge and speak to the Great Mother Turtle as she swims through space.