Hatab: preliminary aim of BT

The preliminary aim of BT is to challenge the modern subject-object binary and traditional ontologies that confine being to notions of presence, extant objects, universality, generality, or mere grammatical function. Heidegger begins with everyday involvement in the world, which will build a sense of being that is enacted, meaning-laden, temporal  , and finite. Heidegger does not   reject notions of objectivity, thing-hood, presence, and such, only their ontological priority, because they emerge out of, and are derived from, engaged practices in factical life. This reorientation is first accomplished in the zuhanden  -vorhanden relation—where Zuhandenheit is illustrated by tool use, which is not a reflective transaction between a knowing subject and an external object, but a field-phenomenon of engaged performance. A breakdown or [2] disruption of this practice-field generates the vorhanden viewpoint of regarding the tool or environment in the more objective sense of things and properties that call for examination because of the disturbance (SZ   76). It is this vorhanden perspective that makes possible and animates traditional models of being, but its derived character undermines the sufficiency of such models. (p. 1-2)