If you want to get technical, I'm agnostic because I have to concede that I cannot know with absolute certainty that there's no god, or almost certainly no supreme being described with any genuine knowledge or accuracy in any known religious text. I say 'atheist' in casual conversation because when people hear ;agnostic' they think you're on the fence and 'just don't know', when the reality is I'm 99.9% certain that we as humans have had no meaningful contact with anything from a higher plane of existence, and that no ghosts or spooks or spirits - in the literal sense at least - walk among us.