There is no moment X. There is no singularity. That’s the myth of entrepreneurs who are trying to sell their stuff like Kurzweil.
True teaching is in the human contact and empathy the teacher cultivates with the student and the student favor in the teacher.
We have to radically change the relation between teacher and student (and in the singular even if it is within a class) and machines, technology is only nothing but tools to reach for knowledge but the motivation for that reaching comes from inside the student and inside the teacher and the various transference relations they both establish from one to the other and simultaneously from the other to one.
Teachers are afraid of falling in love with the students and that the students might fall in love with them. They are afraid of the only human dimension possible: emotions, transference and empathy.