For if brain functioning is rooted in the real world, then there is such a thing as real truths.

But the 'real world' is always, to some degree, a narrative, a narrative always under revision.  I am aware that this assertion is a contentious one, particularly to people who have suffered at the hands of history.  But I also think that, in order to effect a strong barrier against the repetition of the atrocities of history, it is extremely important for everyone to understand that all constitutive matrices for the conceptualization of 'reality' are narratives, and that these narratives have a narrator, or some narrating locus.