  In a previous paper [JCAP06, 033 (2018)] we have proved that it is possible
to have a stable false vacuum in a potential that is unbounded from below. In
this paper we discuss the Physics related to our theoretical and numerical
results. We show that the results of recent CERN experiments lead to the fact
that our vacuum is safe. We present a new mechanism, where the space-time
dimension plays an important role, that explains why our Universe is stable. We
provide new evidence that supports a process for the origin of
matter-antimatter asymmetry recently introduced by other scientists. We examine
confinement in the context of escape problems. We discuss multiverse, string
theory landscape, and extra-dimensions using our framework. Finally, we use our
solutions to introduce some hypotheses about Dark Matter and Dark Energy.

High Energy Physics - Theory