In a message dated 9/29/99 15:39:14, lcrocker@mercury.colossus.net(none) wrote:
>Here's the setup: The speaker, instead of being required to
>create a 60- or 90-minute presentation, creates both a 10-minute
>presentation and a more detailed but unconstrained paper with
>more details on the same topic. This is published before the
>conference on the web where all attendees can see it, mail the
>author comments and questions, etc.
This is within spitting distance of what goes on in scientific conferences. Researchers frequently talk about their stuff in advance or circulate/web publish preprints.
In spite of that, question periods are often short.