  We describe a model in which the fundamental scale M_\star of the theory
which unifies gravity and quantum mechanics is in the TeV range, but without
requiring additional spacetime dimensions. The weakness of gravity at low
energies is due to a large vacuum expectation of a dilaton like field. The
model requires a small dimensionless parameter (the self-coupling of the
dilaton) but no fine-tuning. We discuss in detail the dynamical assumptions
about nonperturbative quantum gravity required within the model. We observe
that M_\star could be quite small, less than a TeV, and that the model could
lead to copious strong coupling effects at the LHC. However, semiclassical
black holes will not be produced.
