As far as I'm concerned at that stage you might as well take homeopathy. How does this follow? No test is equivalent to ignorane. Using the test as a non-invas

As far as I'm concerned at that stage you might as well take homeopathy. How does this follow? No test is equivalent to ignorane. Using the test as a non-invasive prelim screen may be imperfect, but its hard to say the "null hypothesis" is equivalent. That would require that no information be present, which seems unlikely (if unproven). Or did you mean something else?