People can and do use powerpoint slides in many ways. Some folks will rework text in real-time, based on interaction with the participants. Some folks just talk their slides rather than actually engaging with the participants.
A thing to keep in mind is that slides and the jabber activity can be incredibly helpful to folks for whom English not their native language.
I think that, in fact, the issue is not powerpoint-vs-no-powerpoint. I think it is exactly and only the concern you raise: meetings need to be for working group interaction. If that is the clear goal and if the meeting is run with that goal enforced, then none of the trappings matter.
I completely agree with this. And, I've been to plenty of non-interactive lectures that didn't involve any slides.
Dave, do you have any thoughts about how we can change the IETF culture from presentation to interaction (with or without slides). This is something that the IESG has been talking about, among others, but I'm not sure that we've come up with any really concrete ways to provoke/encourage this change.
Margaret
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