Welcome to this world of rationality, truth and peace, where common sense and science lead to freethinking wisdom --- as you know as a non believer and freethinker like us.
We invite you to make good friends by joining the busy group "ORIGINS: Universe, Astronomy, Life, Earth, Humans, Religion, Gods, Atheism, Evolution, Darwin..." with 700 discussion topics and 3500 members.
I'm not sure what you mean by positive non-existence, but I have no problem affirming that self-contradictory mythical "entities" don't exist. You might want to contribute to the forum IS EVERYBODY 100% POSITIVE THERE IS NO GOD?
Please consider joining a group to meet people and talk about anything that's on your mind, Hang With Friends.