 Importantly, for Baker artifacts are intention-dependent (ID) objects—they cannot exist in the absence of beings with relevant intentional states. Thus the cosmic ray striking a sheet of scrap metal in the proverbial swamp and turning it red with white lettering has not created any artifact at all, let alone a stop sign. Baker builds the intentional states into the specification of the required circumstances in terms of a relationship between the construction materials and the intentions and knowledge of the constructor. For a stop sign to exist, for example, it must be constructed from metal and paint by someone who understands the function of stop signs, knows how to construct one, intends to construct one to fulfill this function, and is reasonably successful in executing her intentions (2007, 53–55). This view puts Baker at odds with Aristotle’s view that only things with an internal principle of movement truly exist, as well as with the common view that ID objects do not truly exist. Both of these views are aimed at first distinguishing natural from artificial objects and then downgrading the latter. Baker argues that the distinction itself is suspect, both in light of technologies such as genetic engineering and the natural status of the beings with intentional states who create artifacts (2007, 59–66). In short, the whole process of making artifacts is internal to nature and cannot be legitimately considered separate from it by those inclined to be judgmental in ontological matters.