The Sovereign Body: Personal Digital Twins as Boundary-Spanning Objects Across the WHO Quality of Life Dimensions (v2.1)

Position paper arguing that personal digital twins constitute a new class of boundary-spanning object (Star and Griesemer, 1989) capable of integrating knowledge across all four WHO Quality of Life dimensions. Introduces the LLM/LQM/SQM intelligence taxonomy, the Sovereign Body architectural principle, and the temporal boundary object concept. v2.1: strengthened theoretical grounding with Callon sociology of translation, added comparative analysis table, corrected unsourced claims, added SMILE methodology citations throughout.