04
Part 4 of 8 · hep-th
Relative Entropy, Entanglement Equilibrium, and Linearized Gravity
Which first-law arguments imply gravitational constraints?
What this part establishes
Holographic ball-region and local causal-diamond arguments are compared with their coefficients, dictionaries, fixed-volume conditions, and higher-curvature extensions kept separate.
Boundary of the claim
The entanglement first law is not a generic nonlinear derivation of gravity.