In cat's cradling, at least, two pairs of hands are needs and in each successive step, one is "passive", offering the result of the previous operation, a string entanglement, for the other to operate, only to become active again at the next step, when the other presents the new entanglement.
The process was both individual and collective. We were putting these ideas together out of our struggles with our own work. You write in a closed room while tearing your hair out of your head — it was individual in that sense. But then it clicks, and the words come, and you consolidate theoretical proposals that you bring to your community. In that sense, it was a profoundly collective way of thinking with each other, and within the intensities of the social movements of the late 1960s and early 1970s.
In a dialogue, each person does not attempt to make common certain ideas or items of information that are already known to him. Rather, it may be said that the two people are making something in common, i.e., creating something new together.