Comment on "Cosmic Microwave Background Constraints Cast a Shadow On
  Continuous Spontaneous Localization Models"
  In a recent paper [J. Martin and V. Vennin, Phys. Rev. Lett. 124, 080402
(2020)] it was argued that, for most natural choices, the direct application of
the continuous spontaneous localization (CSL) theory to the inflationary case,
as it is known to work in non-relativistic laboratory situations, is ruled out
by cosmological observational data, thus casting a shadow on models based on
CSL theory. We point out that such results are based on the consideration of a
rather narrow set of choices for the application of the theory to the
cosmological context and that the landscape of open and different possibilities
is extremely vast.
