It came to pass that in 1270 the students of the University of Paris were gathering to hear a lecture on Aristotle by the famous Doctor Angelicus. How surprised were they, when they were told that they will be presented a virtual lecture: the lecturer will be represented by an avatar (a wood doll with a long nose), and the text delivered by a ventriloquist.
When asked in an exit survey whether they thought that the delivery mode improved on the instruction (yes / somewhat / limited) and whether they could understand the ventriloquist (yes / somewhat / limited), many of them sneaked out through alternative exits.
The ones who showed up for the next lecture had a real interest in puppetry. The ones interested in Aristotle went somewhere else.