The necessity of reconstruct in Popper's epistemology in the light of changing in his attitude towards Darwinism

Our understanding of changes that occurred in Popper's thought on biological evolution can help us to discover some neglected aspects of his philosophical system. The article argues that some of Popper's epistemological views have changed over his intellectual life on his attitude towards evolution. These intellectual changes have been occurred from the belief in the possibility of not using truth and falsehood in his initial opinions, to emphasizing the issue of truth and truthfulness in his middle career, and finally moving more and more from a proposition-oriented perspective to non-propositional evolutionary perspectives in his late life. In later Popper, we see a mature evolutionary perspective that is original, and completely different from his earlier reading of Darwinism. These changes have consequences for Popper's thought system, especially in the field of epistemology. On the other hand, the originality of Popper’s reading of Darwinism is rooted in some of his philosophical thoughts. Per Popper's view adaptation is produced as the result of a problem-solving process and biological evolution is the product of an epistemological process. The article is an attention to the reconstruction of Popper's philosophical system in the light of his understanding of his invented reading of evolution; a reading that is conform to some of the new developments in evolutionary biology.