We apply the Displacement Framework to Systemic Lupus Erythematosus (SLE), formalizing it as autoimmune self-displacement — the immune system as internal attacker, imposing D(ξ) on the body's own tissues when tolerance mechanisms fail. The immunological ground state S⁰_immune is defined across five dimensions including self-tolerance, absence of pathological autoantibodies, quiescent complement, intact multi-organ function, and calibrated systemic inflammation.
The tolerance failure cascade (apoptotic debris clearance failure → pDC interferon production → autoantibody formation → immune complex deposition → complement activation → tissue damage) is formalized with the internal antigen term α_self. SLE's characteristic flare-remission cycling is formalized as an oscillating wrong attractor — a limit-cycle trajectory between flare configuration (high D(ξ)) and partial remission — rather than a static wrong attractor, with four mechanisms explaining why remissions are incomplete S⁰ restorations.
Nine formal propositions are derived covering: the Internal Attacker Paradox (P1), calibrated S⁰_immune (P2), flare-remission oscillation as dynamic wrong attractor (P3), remissions as partial restoration with autoantibody persistence (P4), Φ progressive even during apparent remission (P5), SLEDAI as current D(ξ) and SLICC/ACR SDI as Φ_cumulative (P6), coupled multi-domain Φ across renal, neuropsychiatric, cardiovascular, hematologic, mucocutaneous, and musculoskeletal domains (P7), hydroxychloroquine as landscape modifier raising the flare-reentry barrier (P8), and race/sex disparities as externally modulated landscape vulnerability through estrogen effects, allostatic load from structural racism, and healthcare access inequity (P9).
Phronesis