As opposed to the CCU - the BCU is axiomatic and requires no proof. We are all unique. The CCU requires measurements and comparisons and is dependent, therefore, on human activities and on human agreements and judgements. The greater the number of people in agreement - the greater the certainty that a CCU exists and to what extent it does. Human societies have delegated the measurement of the CCU to certain agents.
Universities measure a uniqueness component called education.
It certifies the existence and the extent of this component in their students. Banks and credit agencies measure elements of uniqueness called affluence and creditworthiness. Thus, the absolute size of the group of people involved in judging the existence and the measure of the CCU, is less important. There is, therefore, no necessary connection between the mass communicability of the uniqueness component - and its complexity, extent, or even its existence. A person might have a high CCU - but be known only to a very limited circle of social agents.