As with biological evolutionary progress, over time a new species of homo-psychologicus is brought into being. The earliest phase which was anti-child is described as Infanticidal. The most recent is the Helping phase. The embodiment of the historical movement is the result of the search for love. This evolution does not occur at the same rate throughout the world.
Some areas are further along on the progression to the upper scales of child-closeness than others.
An essential tool of psychohistorians is the examination of public documents and speeches to reduce their words to a small fraction of their original size, to include perhaps an essential one per cent of words imbued with feeling and action. Negative words are removed and subjects and objects and group responses, including laughter, unusual breaks, etc. Psychohistorians have been accused of seeing hidden motivations behind each action, and other meanings in each word. This is a charge that they gleefully accept. The field of psychohistory is criticized by some as being trash and hogwash.