 
 <prompt> How Popper ideas take turn upside down? Given di last question, write something wey get di answer. E fit be 1 - 20 sentences. Context: <response>: Popper talk say rationality no dey restricted to only empirical or scientific theories, but na just one kain of the general method of criticism, the method wey dey find and eliminate contradictions for knowledge without ad-hoc-measures. According to dis view, rational discussion about metaphysical ideas, about moral values and even about purposes fit happen. Popper student W.W. Bartley III try radicalise dis idea and make the controversial claim say not only criticism fit pass empirical knowledge, but say everything fit dey rationally criticised. 