'Curve theory' is a slider that hangs.

Where are the locations of the endpoints to the curve?

Surely you mean 'round', as a curve needs endpoints.

Does the sun revolve around the earth? It would have to in order to satisfy this substitute 'theory'.

The globe theory has been satisfied to reason through demonstration.

...and the pitch.... See 'jump from space' - Youtube.

A mere statement doesn't qualify as a theory.

"I have an invisible frog on my head, burden of proof on you to prove me wrong" is neither a theory, nor sane.