what will happen if earth was flat ? -Created by myself

All of us believe that earth is a ball shaped,
It is hard to believe that earth is flat because of all the technology that exect , in our age now
So what will happen if earth was flat,
First , the gravity will be centered in the middle of the earth,
that if you tried to kick a ball it will fly back to the to the center,
And if you tried to reach the edge of the earth the gravity will pull you back ,
That you will feel like you are climbing a mountain,





But if you reached the edge the gravity will be like our ball shaped earth,
And the oceans will be centered in the middle in a shape like a ball,
So thank god for our current earth.