Agravity
  We explore the possibility that the fundamental theory of nature does not
contain any scale. This implies a renormalizable quantum gravity theory where
the graviton kinetic term has 4 derivatives, and can be reinterpreted as
gravity minus an anti-graviton. We compute the super-Planckian RGE of
adimensional gravity coupled to a generic matter sector. The Planck scale and a
flat space can arise dynamically at quantum level provided that a quartic
scalar coupling and its $\beta$ function vanish at the Planck scale. This is
how the Higgs boson behaves for $M_h\approx 125$ GeV at $M_t\approx 171$ GeV.
Within agravity, inflation is a generic phenomenon: the slow-roll parameters
are given by the $\beta$-functions of the theory, and are small if couplings
are perturbative. The predictions $n_s\approx 0.967$ and $r\approx 0.13$ arise
if the inflaton is identified with the Higgs of gravity. Furthermore,
quadratically divergent corrections to the Higgs mass vanish: a small weak
scale is natural and can be generated by agravity quantum corrections.
