Abstract:
Common lore suggests that effects of quantum gravity are difficult to unravel. The
Planck scale is in fact about 15 orders of magnitude above the highest energy reached on
Earth, namely at the Large Hadron Collider. The Swampland program suggests instead that
the quantum gravity cut-off can decrease thus making quantum gravity effects accessible at
energies lower than the Planck scale. In this talk, I will first review some basics of
Swampland program; I will then concretely show how the quantum gravity cut-off can drop in
certain situations; I will finally explore the implications of this fact for cosmology.