Originally posted by Sadako of Girth
You can with any sceintific blood test.You can prove the abscence of whatever you havent got.
No test is 100% effective, that's why in logic it's stated that you cannot prove a negative. You can repeat the test to an exhaustive level and then conclude there is no reason to believe you have the condition, but as I understand it you have not "proven" anything to the standards of formal logic.
Also, there's no blood test (or indeed test of any kind) for a generic "god".
Where do you live that this happens a lot?
the christian bit happened a lot to when I was in hong kong (of all places). some chick sitting next to me in the subway would suddenly ask me if i was a christian, shake her head sadly, hand me the brochure and start lecturing me on the graces of jesus and how i should repent and convert. VERY annoying also.
It just looks way more likely that the argument for there being no god is correct as it has more evidence for it.
~Sado