@brianjakub,
The difference between humans and animals is generally considered to be that humans use a complex language to plan their interactions with their world. The concept of 'thinking' has nothing to do with it unless you take the strong form of the Sapir Whorf hypthesis ( i.e. that language determines thought). Obviously some species like dolphins, use a form of language in their interactions, including the planning of group activities, but as far as we can tell the level of complexity of that language does not approach that of humans (in terms of potentially limitless semantically significant sequences) .
But having identified
human language rather than thought as the key discriminator, we are then obliged to consider language, including assigning 'thinghood' to aspects of the world, aka
conceptualization as (human) species specific. That point deflates
all concepts to a
human communicative requirements, rather than representative of an independent reality, and that includes the concept of 'design'. Thus the word 'design' as used by IDers, is merely a noise they make which assumes a pictorial context of 'a anthropomorphic designer with a human purpose'. Its merely an attempt at an analogy like 'the heliocentric model for an atom ( now superceded). It is, in essence, an excuse for intellectual indolence. It has no scientific status whatsover because it not refutable in principle (Popper's Criterion).
So unless IDers are prepared to 'come clean' about their covert assumption of an anthropomorphic deity with an anthropocentric 'purpose', they are just making incoherent noises.