oh goody, finally get to pick a fight with an arahant

first though, kenneth, i dont think hokai's point that it's there for everyone to discover means that its discovery is not a developmental landmark. see no incompatibility of claims there.
my point is not that one can bring conscious awareness to cessation, but that cessation does not exist apart from awareness of it after-the-fact (and to some extent before-the-fact as well). though it is described to be discontinuous and non-experiential (and rightly imo), i would still put cessation squarely within the experiential continuum since cessation is thus known.*
*whether it's known 'at the time' or 'later' seems irrelevant to me for this definition since everything i know it by is experiential.