indiscernibility

The state or characteristic of being indiscernible; inability to be observed.

If I drive without such a device, I am doing something wrong despite the indiscernability of the harm occasioned by the emissions from my car in particular.

Inability to be perceived as distinct from something else; indistinguishability .

Yet, from another perspective entirely, in both genres of analysis—those in which film is taken as medium of law and those in which law is taken as a medium of film—one necessarily acknowledges and approaches a zone of indiscernibility between the two.