answer:I haven’t heard that speech in many years. But I would think that the bulk of it’s content would be considered implicit . The speech,as he(MLK) framed it was a story of an abstract reality. A hope for unity amongst the diverse races in America. A hope for love, and peace. He was describing a hypothetical world of coexistence , and how utopian it would be, in that all could be happy. The title of the speech “I have a dream” seems to infer that it isn’t explicit in nature. As I stated though,I haven’t heard it in a long time. There may be explicit elements that I don’t recall. If you are a student, it would be a good thought exercise to watch some of MLK’s speeches and compare them to some of Obama’s. Then watch some of Hitler’s, and compare them to Trump’s…