Alan Kay (American computer scientist) . Talk at Creative Think seminar, 20 July 1982.
A change in perspective is worth 80 IQ points.
Perspective is worth 80 IQ points.
Point of view is worth 80 IQ points
Kay uses the example of solving problems using polar coordinates rather than Cartesian coordinates. Each works better in certain circumstances. Kay developed (invented) object-oriented and user interface ideas that changed computer science and led to the modern window interface with icons, the mouse, etc.
Principles of duality in many fields allow the same problem to be addressed from two seemingly different points of view.