Classroom Telepathy

I finally figured out why my BA 4196 instructor is effectively ignoring me.  He’s switched where he stands during class from behind the front podium to into the area where the desks actually are, and because of some interesting neurological phenomena that accompany some types of cateracts he doesn’t realize anyone on my side has their hand raised.  Then, he’ll ask if anyone has any questions.  Someone on the other side of the room and he’ll pan his head until his good eye sees me and I’ll ask my question.  He then looks back at the person who pointed out that I had my hand raised with a quizzical look as though through a system of classroom telepathy the other guy was made aware of my hand.  Once I figured this out, I started asking a lot more questions.  The instructor does his little surprise act every time like clockwork.