The definition of atheism

ABSENT proof that {A} exists AND
ABSENT proof that {A} does NOT existWhat is the most logical position:
(1) YES {A} exists! OR
(2) NO {A} does NOT exist! OR
(3) We don't know if {A} exists or not

As noted before, I also do not believe that invisible pink unicorns exist (on earth, at this time) ... but recognize that this choice is made willingly and is based on belief.I also qualify my belief based on the limited amount of knowledge available.The logical rational answer to "Let's let {A}=IIPU(bbhh) ..." is still "(3) We don't know if {A} exists or not" -- the agnostic answer.And this logical rational answer still does not prevent us from believing either that "(1) YES {A} exists!" or "(2) NO {A} does NOT exist!"but we've been over this before eh?

then you just voided the preconditions, and it is not really an {A} case at all.but there are also lots of things that are invisible to us, and yet they are colors to other organisms: they just need to be pink to each other.looks like the center of your argument is hollow.... or is it invisible? ...