  Wittgenstein turns to the idea of a science of aesthetics, an idea for which he has precious little sympathy (“almost too ridiculous for words” [Wittgenstein 1966, 11]).  But as is often the case in Wittgenstein's philosophical work, it does not follow from this scornful or dismissive attitude that he has no interest in the etiology of the idea, or in excavating the hidden steps or components of thought that have led some to this idea. In the ensuing discussion he unearths a picture of causation that under-girds the very idea of a scientific explanation of aesthetic judgment or preference. And in working underground in this way, he reveals the analogies to cases of genuine scientific explanation, where the “tracing of a mechanism” just is the process of giving a causal account, i.e. where the observed effect is described as the inevitable result of prior links in the causal chain leading to it. If, to take his example, an architect designs a door and we find ourselves in a state of discontentment because the door, within the larger design of the façade (within its stylistic “language-game”, we might say), is too low, we are liable to describe this on the model of scientific explanation. Then, we make a substantive of the discontent, see it as the causal result of the lowness of the door, and in identifying the lowness as the cause, think ourselves able to dislodge the inner entity, the discontent, by raising the door. But this mischaracterizes our aesthetic reactions, or what we might call, by analogy to moral psychology, our aesthetic psychology.