what shape do you think the earth might be, for example, is it like a coin; not shapley just an infinite surface or pretty jaggerd; a desk; a bowl- convex or concave.
The earth is an infinite plane sat at the base of the universe, shapeless for all purposes and intents. We inhabit a limited circular area of the earth, beneath where our sun circles around itself, providing heat for all life on earth.
Back to the infinite plane again, TomB? I thought you'd given up on that.
Let's review the basic reasons that make it obvious that the Earth isn't infinite.
1) By thermodynamics, the Earth would freeze as the heat conducts away to infinity.
2) By aerodynamics, the atmosphere would flow away to infinity.
3) By logic, the Earth would have an infinite inertial mass and require and infinite force to accelerate constantly. Infinite masses and forces are hard to come by.
Do keep changing your mind, though. It's helps us make the case that you're a fool.