An AI Landscape -- What Do You Mean by AI?

In the old days there used to be a saying that "what we call'artificial intelligence' is basically what computers can't do yet"[1] -- so as things that were thought to take intelligence -- like playing chess -- were mastered by a computer they ceased to be things that needed "real" intelligence. Today, it's almost as though the situation has reversed, and to read most press-releases and media stories it now appears to be that "what we call'artificial intelligence'" is basically anything that a computer can do today". So in order to get a better handle on what we (should) mean by "artificial intelligence" I use the landscape chart below. Almost any computer programme can be plotted on it -- and so can the "space" that we might reasonably call "AI" -- so we should be able to get a better sense of whether something has a right to be called AI or not. The bottom axis shows complexity (which I'll also take as being synonymous with sophistication).