"The dataspace of the well-tempered environment will soon be invaded by logos, credits, banners and offers. The financial temptations will, I suspect, be too hard to resist." Loads of excellent stuff in here besides this, though. Can't recommend enough.

"There's a weird conceit in here, that the activities and practices of normal human beings will involve data processing and algorithms of some sort, which is an awfully big assumption. So big, in fact, that it has distilled down to a way of seeing the world as consisting of bits of data that can be processed into information that then will naturally yield some value to people... Design for people, practices and interaction rituals before the assumptions about computation, data structures and algorithms get bolted onto normal human interaction rituals."