O stratech...

The strata, along with the assemblage, rhizome and the Body without Organs (BwO), form the material basis of Deleuzeand Guattari’s systems theory. As such, an understanding of stratification is necessary to an understanding of their work.
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To begin, there is the entire BwO, or the total set of unformed materials. Geologically, the Earth is an example. Strata are "inevitable phenomenon" that occur on the BwO. They code and territorialize the BwO; put (very) simply, strata make things out of the formless masses. Where there is one stratum, it necessarily follows that there must be another to border it; this leads Deleuze and Guattari to conclude that strata "come in at least pairs, one serving as the substratum for the other" (ATP 40). The strata are formed by double articulation. This involves a simultaneous articulation of content ande xpression:

The first articulation chooses or deducts, from unstable particle-flows, metastable molecular or quasi-molecular units ('substances') upon which it imposes a statistical order of connections and successions ('forms'). The second articulation establishes functional, compact, stable structures ('forms'), and constructs the molar compounds in which these structures are simultaneously actualized ('substances)'. (ATP 40-41)
Strata | Texas Theory
http://wikis.la.utexas.edu/theory/page/strata

Guattariho rozvinuti konceptu auto- a allopoietickcyh "stroju" Maturana a Varely jako proto-subjeku s vlastni onto- a fylogenezi .]


ON MACHINES
Felix Guattari
[...] The machine has something more than structure. It is 'more' than structure in that it does not limit itself to a game of interac­tions which develop in space and time between its component parts; rather, it possesses a core of consistency, insistence and ontological affirmation, which is prior to the unfolding into energetico-spatio-temporal coordinates. This machinic core, which in some respects can be qualified as proto-subjective and proto-biological, possesses characteristics Varella has not completely taken into account. These are, on the one hand, elements of onto- or of phylogenesis, but also, on the other hand, elements of finitude. The machine is a bearer of finitude, of something of the order of birth and death, and from this arises the fascination that it can exert as an exploded, destroyed or imploded machine; a bearer of death around it but also of death to itself. [...]
ON MACHINES
http://www.ntua.gr/archtech/forum/post2006interaction/on_machines.htm