contemporary theories in HCI

Contemporary theories in HCI was a reply to similar wave in society where new human values start to emerge. HCI was young(still is!) and was not really fixed on any specific framework, that helped the field to move along the social and cultural revolutions without falling back. It seems that there is no agreed upon borders or use cases for contemporary theories yet. even parts such as critical theories may be ill understood by many of HCI researchers.
this was yet another hard to grasp reading from this book, the good thing is that after several similar experiences, now I am sure that it will become clear in next few days!