 All members of small ethnic groups belong to the same thought collective: everybody perceives and thinks in the same way, just like everybody performs the same or very similar actions. Within more developed societies there are many various collectives: religious, artistic, scientific, astrological, and those related to fashion, politics, economy, medicine, quack, sport, etc.  When a thought style, developed and employed by a collective, becomes sufficiently sophisticated, the collective breaks into a small esoteric circle—a group of specialists which “are in the know”—and a wide exoteric circle for all those members, who are under the influence of the style, but do not play an active role in its formation. Members of the first group are those “initiated”—priests and theologians in the case of religion; artists and art critics in the case of art; scientists in the case of science etc. The corresponding exoteric circles for those groups are: lay believers; art-lovers; school teachers of physics, chemistry, and biology, and also engineers and all people interested in science.