Although hazardous, prediction is necessary for sensible programing fo
r the future of psychiatry, Because of the multitude of variables esse
ntial for comprehending normal and abnormal behavior, a complex, all e
ncompassing model takes on increasing importance, Dualism and reductio
nism have had a chilling effect on progress in developing psychiatric
models, The biopsychosocial model as elaborated by Dr. George Engel wo
uld appear to be a major step in moving toward an adequate workable mo
del, Dr. Engel rejects the biomedical or Newtonian model in favor of t
he biopsychosocial model, basing his conception in part on development
s in the past century, particularly the contributions of Einstein, Hei
senberg, and Planck. The implications and relevance of these advances,
including the work of Niels Bohr, are presented. Other ideas such as
Chaos Theory and the work of Roger Penrose are also discussed, togethe
r with the new thinking that arises from them. This work reinforces no
tions of holism, leading to a more humanitarian psychiatry and medicin
e. Copyright (C) 1995 by W.B. Saunders Company