 
 <prompt> Which one of di following no fit be potential topic for rational discussion: metaphysical ideas, ad-hoc-measures or moral values? Given di previous question, write a context wey contain di answer. E fit be 1 - 20 sentences. Context: <response>: Popper believe say rationality no dey restricted to only empirical or scientific theories, but e dey just one special case of the general method of criticism, the method of finding and eliminating 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's student W.W. Bartley III try radicalise dis idea and make the controversial claim say not only criticism fit go beyond empirical knowledge, but say everything fit dey rationally criticised. 