But what is a difference? A difference is a very peculiar and obscure concept. It is certainly not a thing or an event. This piece of paper is different from the wood of this lectern. There are many differences between them—of color, texture, shape, etc. But if we start to ask about the localization of those differences, we get into trouble. Obviously the difference between the paper and the wood is not in the paper; it is obviously not in the wood; it is obviously not in the space between them, and it is obviously not in the time between them. (Difference which occurs across time is what we call "change.")
A difference, then, is an abstract matter.”
Gregory Bateson, Form Substance and Difference, from Steps to an Ecology of Mind, 1972
“Writing on information theory, Gregory Bateson defines a map itself not as a territory but as the establishment of difference that defines territories. The diagram, when used properly and productively, behaves in a similar way, as an abstract gradient defining a range of difference. Like the projection of various systems of content onto the same map, there is a potential in “the difference that makes a difference”. This difference is not automatically produced as an inherent feature of the map but is the result of value judgments.”
Reiser+Umemoto, Atlas of Novel Tectonics, Princeton Architectural press, ch.54
After a period spent collecting and sharing data among themselves, students individually began to select, sort and organize them in order to produce what is intended above in the definition of diagram: a gradient field of intensive forces operating on the territory. Diagrams will be used throughout the whole lab period as an operating tool in the definition of projects, according to a multiplicity of approaches.
Here below are some examples of how students formulated their diagrams.
Michele Semeghini (ST, vegetation mass & wind):
Matteo Tosi (PC, vegetation species network & CO2 absorption):
Leandro Robutti (ST, photosynthesis & oxigen volumes):
Daria Zacchini (ST, vegetation species network):
Lucia Mondardini (PC, acoustic mapping):
Andrea Romano (PC, acoustic Mapping & direct radiation mapping):