 Key questions, then, include: what are the relevant Rs typically cited? do those Rs genuinely signal purpose and design? how does one show that either way? are there viable alternative accounts of the Rs requiring no reference to minds? how does one show that either way? The specific Rs in question are obviously central to design argument efforts. Although the underlying general category is, again, some special type of orderliness, the specifics have ranged rather widely historically. Among the more straightforwardly empirical are inter alia uniformity, contrivance, adjustment of means to ends, particularly exquisite complexity, particular types of functionality, delicacy, integration of natural laws, improbability, and the fitness (fine-tuning) of the inorganic realm for supporting life. Several problematic proposals that are empirically further removed and have axiological overtones have also been advanced, including the intelligibility of nature, the directionality of evolutionary processes, aesthetic characteristics (beauty, elegance, and the like), apparent purpose and value (including the aptness of our world for the existence of moral value and practice) and just the sheer niftiness of many of the things we find in nature.