See elsewhere here, there's no shortage of experiments to be done that could be determinative in this case. Also, Karl Popper's rule is a great rule of thumb, i

See elsewhere here, there's no shortage of experiments to be done that could be determinative in this case. Also, Karl Popper's rule is a great rule of thumb, it really is; but there's an immense bibliography in philosophy of science about whether it's a shoe that fits all circumstances.