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Concrete bulk interpretation of observer-dependent interior effects from scrambling

Establish a concrete bulk interpretation—preferably via gravitational path integrals—of observer-dependent black hole interior phenomena induced by scrambling dynamics and operator reconstruction in holographic CFTs, clarifying how such effects arise from bulk backreaction.

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Background

The authors point to earlier CFT-based analyses demonstrating observer-dependent aspects of black hole interiors due to scrambling dynamics and reconstruction of Hawking partner operators.

They note that while shockwave-like backreaction was conjectured to underlie these effects, a concrete bulk interpretation remains unresolved, suggesting a parallel open direction for baby-universe microstates and observer-induced backreaction.

References

While it was conjectured that such effects may arise from shockwave-like backreaction near the horizon, a concrete bulk interpretation, such as one based on the gravitational path integral, remains to be understood.

Baby universe as logical qubits: information recovery in random encoding (2511.20747 - Mori et al., 25 Nov 2025) in Subsubsection “Observer-dependence in baby universe” (Section 6, Outlook)