  I present a new derivation of Hawking radiation by applying the Crooks
fluctuation theorem to the laws of black hole thermodynamics. Then, by analogy
with the quantum fluctuation theorem, this allows one to identify microstates
contributing to the black hole entropy. These microstates have an evolution
operator on the horizon between initial and final states that is related to the
entropic gravity proposal. Their full calculation perhaps requires a deeper
understanding of nonperturbative Hawking radiation.
