We are all familiar with groups from quartets to octets. The single-figure group is the base of all else. It includes the family. It is a synonym for the team. During the last war this country was run in spectacular fashion by a War Cabinet of five.
Personal interaction is both dynamic and conducive to instant decision-making.
Philosophy reverts to its original character, the love of wisdom in action. We are genetically programmed accordingly. There were no military or priestly castes, no inherited rank, no inscribed Law. It was a static society, but holistic and classless. The fifty bracket survives all round us in the neighbourhood, the small company, the voluntary society, the sect, the village.