The 1929 surrealist’s map of the world makes a nice example of experimental ontology. The map uses different criteria to those of physical space to determine how things should look. These criteria are pure pneuminous, that is they do not seek truth from umbratic restraint (the shadowy suggestion of a rigid physicalism), they show an effect of privileging a certain kind of information (unconscious/mythological) as determining how the spatiality can be interpreted. Of course in doing this act the agents of surrealism formed another accretion, creating its own bizarre dogma. The lesson from the surrealist map is not to become agents of that map-accretion (though of course one could), but rather to perceive the possibility of using your own criteria to restructure spatiality, to form your own accretion.