Just curious. Why would the Earth be flat?

And don’t comment some Bologna like “Oh, giga, if it were round, the people in Antarctica wound fall off!” First of all, space has no gravity, so pulling down all over is already out of the question. Or maybe, like, I don’t know, every other planet in existence, gravity pulls to the core! But like I said. I’m just curious. So if you can educate me, educate me.