I think porn, namely the task of the viewer, involves an alignment with libidinal rhythms. A tuning in, an attempt to finely cleave to the ebbs and flows being enacted. And the bodily participation on behalf of the viewer is, at its bare minimum, physiologically obligatory.
Might not even be that way forever, but the neurotechnics seems a ways away from that. Not even sure if a neurotechnics has been properly elaborated yet, as either a field or an industry. Haven't looked.
But back to porn: since the bodily involvement of the participant-qua-viewer is, in the case of the digital, abstracted beyond the physical interaction with the other sexual participants, the performers - because of this abstraction, it is as if a certain set of constraints are lifted, in terms of what the pre-digital, pre-remote sexual experience really demands of all its participants, no?