You might like Robert Kegan's work, specifically "A discerning heart" as a quick primer.
What you'd describe is a proliferation of stage 2 personalities that can take perspectives only alternatingly, but not simultaneously as in stage 3. It has become a fun and at times enlightening pastime to view the world through his framework.
What you'd describe is a proliferation of stage 2 personalities that can take perspectives only alternatingly, but not simultaneously as in stage 3. It has become a fun and at times enlightening pastime to view the world through his framework.