We don;t know that the riposte moved to a differnt point because we weren;t there and do not have the profs words.
It did one of moving to a different point, agreeing with TsviBT or being outright incorrect. (Again following your assumption that it was, in fact, a riposte.) Moving to a different point is the most likely (and most generous) assumption.
(I have expressed my point as much as I ought and most likely then some. It would be best for me to stop.)
We don;t know that the riposte moved to a differnt point because we weren;t there and do not have the profs words.
It did one of moving to a different point, agreeing with TsviBT or being outright incorrect. (Again following your assumption that it was, in fact, a riposte.) Moving to a different point is the most likely (and most generous) assumption.
(I have expressed my point as much as I ought and most likely then some. It would be best for me to stop.)
TsviBT ’s point was not outright correct,, which leads to further options such as expounding on a subtle error.