More on noumena and phenomena

The noumena/phenomena debate is spreading through the blogosphere. Duck at DuckRabbit, has an interesting post discussing the relation between the Cartesian conception of objectivity and Kant's transcendental idealism. At Siris, there is a post suggesting that we have so little knowledge of noumena that we cannot decide between two-worlds and two-aspects interpretations. The idea is that the whole debate is misguided since the commentators do not really take seriously the limitations of our knowledge that transcendental idealism identifies. I have written a few short comments in reply to the latter post.