
You don't know. If we reduce everything down I could claim we don't 'know' anything, cogito ergo sum reduction and all that, but I'm not doing that. I'm saying that empirically, you can conclude that there is a god/God all you like, but there's as much evidence to actually support that theory, over others, as there is for imaginary unicorns fucking a leprechaun and creating the universe by chance.
( , Thu 6 Oct 2011, 2:14, archived)

and that pure logic can establish truth - not absolute truth, mind you, because of Tarski's undefinability theorem, but if we allow ourselves to take the mathematical definition of "exists" Godel's Diagonal Lemma helps us a great deal.
( , Thu 6 Oct 2011, 2:23, archived)