“statistical” aspect of entropy as a measure of disorder, missing information, multiplicity of microstates compatible with a given macrostate, etc.

Quite a few workers in the field argue that the peculiar dependence of BH-entropy on the area of the event horizon points to the fact that the degrees of freedom (DoF), responsible for BH-entropy, are situated near the event horizon. This seems to be further corroborated by the corresponding behavior of the so-called entanglement entropy, i.e. its (apparent) linear dependence on the area of the dividing surface (cf., just to mention a few sources, [@Hooft2],[@Sorkin1],[@Sorkin2] or the lively debate in [@Jacobson1], concerning entanglement entropy in a more general setting, [@Sorkin3],[@Srednicki]). This linear dependence does however not generally hold without further qualifications. It does in particular [not]{} hold for excited states (see [@Requ2])!

That is, while some particular sort of entanglement certainly plays an important role in this context, the real question is in our view the scale of resolution of space-time where this entanglement becomes effective and the nature of the quantum vacuum on this level of resolution.\
Remark: We want to emphasize the in our view crucial (but frequently apparently not fully appreciated) point that the entropy content of 