The method I’ve described assumes there is already a shared sense of direction, and we’re just filling in the details on the fly. Julien Carnot what you’re describing sounds a lot more like ‘agreeing’ than ‘co-writing’.

If I were writing a text to set the foundation of a collective of 12 people, I would have some open conversations to understand the territory, agree some principles, and then delegate the writing part to a subgroup of 2 or 3 people (try Generative Decision Making). It might take a couple of loops between the big group and the subgroup before people are satisfied.

My aim would be: get to know each other, understand our shared values and aims, build productive relationships, get to know people’s unique competencies/passions and commitment level, and then practice delegation. “Involving everyone in everything” is a recipe for overload and friction.