 While deconstructionists have concluded that we must abandon any further attempts to create a comprehensive vision of the world , Cobb and other constructive <unk> believe that metaphysics and comprehensive world @-@ models are possible and still needed . In particular , they have argued for a new Whiteheadian metaphysics based on events rather than substances . In this formulation , it is incorrect to say that a person or thing ( " substance " ) has a fundamental identity that remains constant , and that any changes to the person or thing are secondary to what it is . Instead , each moment in a person 's life ( " event " ) is seen as a new actuality , thus asserting that continual change and transformation are fundamental , while static identities are far less important . This view more easily reconciles itself with certain findings of modern science , such as evolution and wave @-@ particle duality . 
