  Scalar weak gravity conjectures (SWGCs) attempt to pinpoint the ranges of
couplings consistent with a fundamental theory of all interactions. We identify
a generic dynamical consequence of these conjectures for cosmology and show
that SWGCs imply a particular behavior of the scalar fields in the early
universe. A scalar field that develops a large expectation value during
inflation must relax to the minimum of effective potential at a later time.
SWGCs imply that a homogeneous distribution of the field is unstable with
respect to fragmentation into localized lumps, which could potentially lead to
significant consequences for cosmology.
