Augustus
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Hmm, so if I make a claim a deity doesn't exist that would carry a burden of proof, which I cannot meet as in its broadest sense the assertion a deity exists is unfalsifiable.
Thus I must be an agnostic (at least in that context) and since I lack belief that any deity or deities exist, I am by definition an atheist. Thus atheism and agnosticism (though different) are not mutually exclusive. Atheism is not a belief, though an atheist can hold a belief no deity exists, I however do not.
How hard is that to understand?
How hard is it to understand we are discussing what BR said in 1950s and how he viewed the terms then? Saying how you view the terms today is irrelevant. He doesn't use them the way I would use them either, but we aren't discussing my opinions, but his explicit statements
Russell's teapot was a specific elucidation on the point we were discussing: "I ought to call myself an agnostic; but, for all practical purposes, I am an atheist."
Link that to his definitions of the terms and it's perfectly obvious what he meant.
An atheist... holds that we can know whether or not there is a God...The Agnostic suspends judgment, saying that there are not sufficient grounds either for affirmation or for denial.