 Orilia (2006, 2007) develops this sort of response a bit further. He agrees with Armstrong (1997) that Bradley’s regress is an explanatory regress that is, in fact, benign. What makes it benign for Orilia is that at each step of an explanation the added fact explains the previous one via an additional external relation. He argues that despite it being the case “that at any given stage we can continue the explanatory task”, it “does not show that no knowledge or no understanding is provided at any stage”. According to Orilia, this “merely shows that at no stage we know/understand everything that there is to know/understand about the explicandum that gives rise to the expalantory chain. And noting that the explicandum in question gives rise to such an infinite chain may be considered part of our understanding of it” (Orilia 2007: 160).