*A future version of the software might find that each of the eight essential quesitons moves from a binary choice to a quad of choices:"
*By the end of your story has your MC:
Become less steadfast
Changed but only as an exception"
"In fact an even later version of the software might also add:"
"Become more steadfast
Changed but only temporarily"
"Will Eventually Change
Will eventually come back to steadfast"
"Now we have two complete quads. One Change Quad, one Steadfast Quad."
Melanie is pointing out that the theory, or the implications of the theory, often extend beyond the boundaries of the software, and sometimes in useful ways.
It wasn't done this way in the current version because of constraints around time, business and, well, they'd already done a lot of hard work. Plus, it was hard enough, and still is, for people to understand the implementation of the theory in the software as it is.