Origin of ultra-high energy cosmic rays: The cosmological manifesto
  A spectre is haunting physics---the spectre of non-thermal processes.
Manifesting itself in astroparticle physics, all classical disciplines of
physics and astronomy have entered into a holy alliance to exorcise this
spectre: While astronomers try to destroy it with ignorance, convinced that
only thermal processes are of importance to the dynamics of the Universe,
particle physicists obscure it in the clouds of mystified admiration, simply
because the Universe works on energy scales which are far above of their own
technical and economical capabilities. It is high time to understand the energy
scales of astroparticle physics in those of the Universe itself, by linking the
existence of their basic essence, cosmic rays, via a universal mechanism to the
ground reservoir of all non-thermal energy, gravitation. By this we meet the
nursery tale of the enigmatic, mysterious sources of cosmic rays with a set of
numbers naturally derived from cosmological parameters, which manifest
themselves in a large range of astrophysical objects that stand in rank and
file along a diagonal in the famous Hillas-plot, and in fact only have in
common that they efficiently convert gravitational energy. While this
manifesto, promoting the cosmological revolution in astroparticle physics, does
not release us from detailed modelling of cosmic ray and multimessenger sources
in order to understand all the details delivered by current experiments, it
does help to clear up our view on the problem and to avoid some common
fallacies and misconceptions.
