A brilliant aspect of the conference I just attended was the the fact that presenters were required to create YouTube versions of their research. Some of the videos I liked best are here.
A radical idea: what if conference presenters at venues like ISA prepared 3-5 minute videos instead of giving 15-minute presentations. Panelists would appear but not speak until time to field questions. Each video would run, a discussant would present concise remarks for another 7 minutes, and questions would begin. Panel slots could perhaps be shortened somewhat. Imagine how much time this would leave for discussion and networking, perhaps even (!) for lunch.