 A Thousand Plateaus maintains the tripartite ontological scheme of all of Deleuze’s work, but, as the title indicates, with geological terms of reference. Deleuze and Guattari call the virtual “the Earth,” the intensive is called “consistency,” and the actual is called “the system of the strata.” As the latter term indicates, one of the foci of their investigations is the tendency of some systems to head toward congealment or stratification. More precisely put, any concrete system is composed of intensive processes tending toward the (virtual) plane of consistency and/or toward (actual) stratification. We can say that all that exists is the intensive, tending towards the limits of virtuality and actuality; these last two ontological registers do not “exist,” but they do “insist,” to use one of Deleuze’s terms.