 It becomes clear at this point that in trying to establish John’s blameworthiness for the original action we are facing a regress. John would be blameworthy for his unwittingly activating the treadmill and its consequences only if his ignorance of the button’s function was itself culpable, which in turn requires that such ignorance derives from a culpable action or omission (a benighting act). But culpability for a benighting act again seems to require awareness, so if John’s omissions to inform himself were also unwitting—if he was also ignorant or unaware of the need to read the operational booklet, say—we would need to search for further benighting acts to which we could trace back this extra piece of ignorance. For the regress to terminate, the agent’s ignorance must be at some point the causal upshot of an action or omission performed in full awareness of all the relevant facts (including the relevant moral facts. See below). As Rosen puts it,