Scissiparity

Scissiparity is Sartre's term for the structural self-splitting intrinsic to the for-itself as a mode of being. Derived from the biological notion of reproduction by division (as in cell fission), Sartre deploys it philosophically to name the nihilating movement by which the for-itself is constituted not as a unified self-presence but as a being that is always already divided from itself. Each of the three fundamental "ekstases" of the for-itself — self-consciousness (the pre-reflective cogito), reflection, and being-for-others — enacts a successively more radical scissiparity: a wrenching-away in which the for-itself attempts to coincide with itself, only to find that the very act of taking a perspective on itself produces a new gap. Scissiparity is thus not a contingent failure but the formal condition of the for-itself's mode of being: it is constituted by, and as, its own internal nothingness. At the level of reflection specifically, the for-itself attempts to take a point of view on its own nihilation — to objectify the very movement of self-distancing — but this attempt is structurally vain, since any reflective act is itself a fresh nihilation, not the capture of a prior one.

The broader ontological consequence Sartre draws is that the plurality of Others is not an empirical accident but a metaphysical necessity generated by this structure. The totality-for-itself, in its self-shattering attempt to reapprehend itself as a totality-in-itself (to achieve the impossible coincidence of for-itself and in-itself that Sartre calls the ens causa sui or God), fractures into a field of multiple, mutually alienating consciousnesses. Each Other embodies the for-itself's objectified dimension — the Look that fixes what the for-itself cannot fix from within — and the oscillation between treating the Other as subject or object (transfiguration/degradation) follows necessarily from this scissiparity at the heart of being-for-others.

Scissiparity appears in the source jean-paul-sartre-hazel-barnes-being-and-nothingness as a technical intensification of Sartre's analysis of being-for-others and the ekstatic structure of the for-itself. It sits at the intersection of several cross-referenced canonical concepts. Most directly, it specifies the ontological mechanism underlying being-for-others: the Look does not merely reveal an alien perspective but is made structurally necessary by the scissiparity through which the for-itself externalises its own internal negation. Where being-for-others is described as "the most radical ekstasis of the for-itself" and as an "externalised" scissiparity, the term scissiparity names the inner dynamic that being-for-others presupposes and extends.

In relation to consciousness and contradiction, scissiparity is what prevents consciousness from being the self-transparent sovereign it posits itself as. Each reflective attempt at self-transparency produces a new split rather than closure — a structure that resonates with the Lacanian critique of consciousness as constitutively deluded. Scissiparity also bears on alienation: Sartre's forced self-division echoes the Lacanian vel of alienation in that both describe a structural situation where the for-itself (or subject) cannot achieve full self-coincidence without loss. Against the Hegelian telos of Absolute Knowing — where the subject-object opposition is finally overcome — scissiparity insists that every act of self-reflection re-opens rather than closes the gap, making any absolute self-transparency structurally impossible. The concept thus functions as a Sartrean specification of why dialectical sublation remains, at the level of consciousness, always vain.

Being and Nothingness: An Essay on Phenomenological OntologyJean-Paul Sartre · 1943 (page unknown)

The reflective scissiparity corresponds to a vain attempt to take a point of view on the nihilation which the for-itself has to be

The phrase "vain attempt to take a point of view on the nihilation which the for-itself has to be" is theoretically dense because it identifies reflection not as a neutral cognitive act but as a structurally doomed project: the for-itself cannot stand outside its own nihilation to observe it because it is that nihilation — "has to be" signals ontological compulsion, not mere contingency. "Scissiparity" then names the irreducible remainder of this failed self-appropriation: the split that reflection generates rather than heals.