3
The next iteration remains generally the same as the last, with a few key differences and additions. The first main idea is that discussions are independent entities, which can be anchored to units on the global board. A discussion can be anchored to a particular unit (topic, idea, set of ideas) by "focusing" on it. The "document" structure we had last time we're getting rid of, replaced by a "pinned messages" section which serves the same purpose without the needlessly complicated structure.