Well, what does "good" mean anyway? As Wittgenstein suggested, "good," like "game," has a family of meanings. Prominent among them is this one: "meets the criteria or standards of assessment or evaluation."
John SearleWe often attribute 'understanding' and other cognitive predicates by metaphor and analogy to cars, adding machines, and other artifacts, but nothing is proved by such attributions.
John SearleWhere conscious subjectivity is concerned, there is no distinction between the observation and the thing observed.
John Searle