This is great stuff.

He is the type of per­son with whom it is quite lit­er­ally impos­si­ble to argue.”

This all begins to feel a little Derrida-esque. If Derrida is correct, at some point we ram into that logical conundrum of signifier and signified. Religious discussions frequently traverse into that nebulous dark world.

The validity or invalidity of any argument seems unavoidably intertwined with the need for the “outside text”.

At that point, we are all vulnerable, are we not?

I understand you. My reality disagrees with yours.” seems to be a more appropriate end point.