In a recent paper Beck and Mackey [astro-ph/0603397] argue that the argument
we gave in our paper [Phys. Lett. B 606, 77 (2005)] to disprove their claim
that dark energy can be discovered in the Lab through noise measurements of
Josephson junctions is incorrect. In particular, they emphasize that the
measured noise spectrum in Josephson junctions is a consequence of the
fluctuation dissipation theorem, while our argument was based on equilibrium
statistical mechanics. In this note we show that the fluctuation dissipation
relation does not depend upon any shift of vacuum (zero-point) energies, and
therefore, as already concluded in our previous paper, dark energy has nothing
to do with the proposed measurements.Comment: 4 page
