[happytoexplain]

>Is there a clear bright-line

Not one that represents a universal truth - there never is. We decide on lines that are arbitrary to reality but interesting to humans because we have no other choice. Note that this is different from subjective vs objective, which is a second axis, but is often used as a synonym for the first when creating a false dilemma. Objectivity is more relevant when deciding on the written language of the implementation, which is different from the interesting moral problem.