Read the first post of the thread where you talked about old age and I had to think of this (AT teacher called Elizabeth Walker, 85 years old in this vid from '99. She's still teaching...):
http://www.youtube.com/watch?v=_beEfRiCtEE&NR=1
Watch from 36'' for example...
Nothing to do with IT really, just a coincidence that i had seen this vid and then read the question in the first post.
kvaak
Pauliina