@ink_slinger i think its not so much that people are stupid as they are trained not to think critically about things, because thats not usfull for capitalism.
regarding scale, that can be solved buy federating small groups together, if a decision only effects a group they can decide it, if it effects multiple groups they can all come to a position, mandate a delegate with that position, and have all the delegates meet to try and find a result that is acceptable to all groups.