y relevant to our present
circumstances.  This is the "interpreter-indexing" (I-I)
property of certain signs, expressions, texts, theories,
corpi, oeuvres, works, lives, or whatever, where one has
to know who's talking in order to know what's being said.

Thus, we commonly have situations like this:

A : "I" = "A"
A : "U" = "B"

B : "I" = "B"
B : "U" = "A"

And yet, short of being caught between the bases
of a "who's on first" routine, people seldom get
confused at all by all of this I-I business.

It is in