 Various chapters discuss scientific and
philosophical ideas such as emergence and chaos, free will, perception versus reality, objectivity versus subjectivity, self-awareness, the ego and id, groupthink, and extelligence.A theme is that the traditional reductionist approach of trying to understand things as interaction of simpler things can not alone explain such complex concepts as intelligence or culture.To better understand them one has to consider also the context in which they have evolved and the fact that the evolution is a recursive process, often changing the context so that previously unseen evolutionary paths became available.