That frisbee view is from watching too many Bugs Bunny cartoons and it's not a thin disc... not a flat plate shaped plane with Australia on the underside...that is a 50yr old hack used to denounce it...not one person that believes the SURFACE of the earth is flat thinks it looks like a damned frisbee!. It is not a round circle you could approach the edge at either, it goes on past Antarctica. There is a basin the oceans sit in defined by a circular-shaped wall of ice that at its LOWEST elevation is 2,000ft ABOVE sea level and you can go Google Antarctica yourself and verify that, but no one ever said it was shaped like a frisbee. That explains a lot though, that you globe believers think that is what we think it is shaped like...enlighten yourself.