IMO, the most effective solution to this problem is to sidestep the issue altogether by splitting groups so that more people can talk at the same time. It's al

IMO, the most effective solution to this problem is to sidestep the issue altogether by splitting groups so that more people can talk at the same time. It's also much easier to negotiate rules - interrupt vs wait - in a group size of 2-4 than in one on the order of 20 people.