I do have some advantages over most, remember? [ He taps the corner of his eye. Sight that Lahabrea cannot begin to match, and even Emet-Selch doesn't quite equal. Sight, and only sight. ] I do know. I even saw the soul, aiming to return to the Star before that, though I have never met its original owner.

And, as far as I know, they are not discussing it because they do not know and they have gotten so frustrated with not knowing that they have stopped reminding themselves that they don't know and moved on to things they can actually do something about. Or so the eminent Emet-Selch has implied.

You'll have to ask him for the details of what they did discuss, or for the minutes of the last month of meetings. Or both, I would guess the intersection between the two will be the fascinating, thrilling truth.