Earthmeasured it is the person who makes extraordinary claims that has the burden of proof.
Tens of thousands of scientists from multiple fields of research all know that the earth is spherical. You have the arrogance to claim - without any relevant qualifications - that they are all wrong. Nobody here has to provide any evidence.
JWs are the most scientifically illiterate group of people on the planet but at least they got the shape of the planet right.