Empirical evidence? I own a spaceship? How does one prove this does not exist somewhere.
This is a fallacy of logic. One cannot "prove" a negative. One can only disprove an alleged positive. For example, there's
no way that you can "prove" that leprechauns
don't exist.
You believers pick and choose what requires empirical evidence.
Nope. The 7 million people who accept the round earth model are not termed "believers". Rather, the tiny, tiny minority of the world's population who disagree with this are termed "disbelievers". We round earthers don't "believe" that the earth is spherical; we know it absolutely—there's no "belief" involved in the equation.
Belief can be defined as faith, hope, supposition, or even just personal opinion. But no sign of any empirical evidence.
One may believe that unicorns exist, but with a total lack of viable evidence to prove the contrary, that belief is valueless. Like your belief that the earth is flat.
Sorry.