  In this work, we consider the atypical non-equilibrium state found in
[1708.06328] which holographically represents a behind-the-horizon excitation
in a blackhole spacetime. The special feature of this state is that it looks
like an equilibrium state when probed by a class of low-energy operators.
First, we retrieve this property using the uniformization mapping in the limit
of large central charge, in the process we are able to derive rather than
presume approximate thermal physics. Furthermore, in the large-c and
high-energy limit we realize these excitations as elements of the commutant
algebra of a GNS-representation of the light operator algebra. Instead of
analytically continuing a mixed heavy-light Euclidean correlator to a
Lorentzian correlator, we identify the Euclidean correlator as a GNS-linear
form and interpret the Lorentzian correlator as a vacuum expectation value of
representatives of the light operator algebra on the GNS-vacuum.
