How a designer gets from thought to thing is, at least in broad strokes, straightforward: (1) A designer conceives a purpose. (2) To accomplish that … - William A. Dembski

Intelligent design is eminently falsifiable. Specified complexity in general and irreducible complexity in biology are within the theory of intelligent design the key markers of intelligent agency. If it could be shown that biological systems like the bacterial flagellum that are wonderfully complex, elegant, and integrated could have been formed by a gradual Darwinian process (which by definition is non-telic), then intelligent design would be falsified on the general grounds that one doesn't invoke intelligent causes when purely natural causes will do. In that case Occam's razor finishes off intelligent design quite nicely.

From our vantage, materialism is not a neutral, value-free, minimalist position from which to pursue inquiry. Rather, it is itself an ideology with an agenda. What’s more, it requires an evolutionary creation story to keep it afloat. On scientific grounds, we regard that creation story to be false. What’s more, we regard the ideological agenda that has flowed from it to be destructive to rational discourse. Our concerns are therefore entirely parallel to the evolutionists’. Indeed, all the evolutionists’ worst fears about what the world would be like if we succeed have, in our view, already been realized through the success of materialism and evolution. Hence, as a strategy for unseating materialism and evolution, the term "Wedge" has come to denote an intellectual and cultural movement that many find congenial.

Even many Christians who have been raised and indoctrinated in a secular mindset … will say, 'Look, we're just going to have to accept the science of the day and try to make our peace with it theologically.' … And there is no peace theologically … ultimately with this view [Darwinian evolution]. But they accept it. And so, this idea of intelligent design becomes very threatening.