The wider the distance between signs/images the greater the space to be filled, the grander the concept, the impossible gap, generally seceded to the viewer. This is our conceptual moment. Objects have meaning, we cannot pass that off, and the distance between them, grand like the canyon, vacant and large. Rodriguez, against any "signature object", the only thing left to do is to produce greater and greater gulfs of meaning.
see too:
Adriana Lara at Algus Greenspon,
Henning Bohl at What Pipeline