VISIBILITY [fr. visibilité]

Visibility means being realized, actual.
Visible are objects and bodies.
Visible are also causal, relational and hierarchical structures, as well as other stuff which can be indexed in time and space.
Invisible are unrealized or potential stuff, non-combinable relations.
Invisible are aleatory, hidden and secret structures which can’t be indexed.
Visibility is the object of art.
Art aims at transforming or exposing the invisible to light.
To index aleatory, hidden or secret structures.
To make them visible.
To make them objects of opinion.
This means that the artist applies a method or a device to transform invisible matter to observable forms.
The methods or devices varies from artist to artist.