The Economic Times article was very interesting. Although I know that my teacher uses skype to keep up with students around the world (He is even teaching students in India
from London, turning the usual perception on its head!) I'd never thought of it as a serious way of learning other than keeping up between classes. After reading the experiences of V Suresh and his students, I can see that it certainly can be a serious learning medium. Suresh seems to be very at home with the technology, and with exploring the technology to improve its effectiveness. Perhaps this is one of the necessities, rather than just accepting simple video-call function on basic equipment.
As well as good use of technology, it must require an ability to express things in words, and this is something that not all teachers, who are instructing by physical contact, necessarily have. Even then, there are limits. I suspect that RKSK would be as good at explanation as anyone, but, as he says in the article, he needs to hold the bowing hand, and he cannot do that over the internet.
Anyway, this has nothing to do with the actual question asked --- but thanks to the questioner and the the answerers for making me think about this
