> When people are interrupting each other - when they're constantly tugging the conversation back and forth between their preferred directions - then the conversation itself is just a battle of wills. But when people just put in one thing at a time, and trust their fellows to only say things that relate to the thing that came right before - at least, until there's a very long pause - then you start to see genuine collaboration.
I think that's the meat of the collaborative conversational spirit. Interruption/waiting is one axis, another nearly orthogonal axis is continuation/abandonment of the current topic which correlates more strongly with actual listening rather than politeness.
In terms of [1], I've definitely encountered "civil barkers", who will never interrupt you verbally (but usually offer increasingly strong nonverbal cues that they want their turn), then very weakly link into a new topic. That is to say, waiting isn't a sufficient (nor I'd say necessary) condition for constructive conversation. E.g. the Trump/Hillary debate, when asked to say something nice about each other, Hillary immediately pivoted into talking about her platform.
[1] https://sambleckley.com/writing/church-of-interruption.html