Late to this; but here's a Q&A with the author which may shed some light: https://www.c-span.org/video/?466007-1/qa-susannah-cahalan https://www.c-span.org/vi

Late to this; but here's a Q&A with the author which may shed some light: https://www.c-span.org/video/?466007-1/qa-susannah-cahalan https://www.c-span.org/video/?466007-1/qa-susannah-cahalan