Very interesting concept. However in the video about sociocracy, the main concept about decision making is that every decision needs a total consensus and no objection from all participants right?
Actually decisions are not consensus driven. There is a precise set of guidelines which describe how they are made, and in the end it is up to the domain experts to choose (bearing in mind the views of the group). There are other principles like ' good enough for now' which are also used to avoid stalemate etc. I suggest reading Many Voices, One Song for a more expert and detailed explanation.