Rejuvenating the hope of a swampland consistent inflated multiverse with
  tachyonic inflation in the high energy RS-II Braneworld
  The swampland conjectures from string theory have had some really interesting
implications on cosmology, in particular on inflationary models. Some models of
inflation have been shown to be incompatible with these criterion while some
have been shown to be severely fine tuned, with most of these problems arising
in single field inflationary models in a General relativistic cosmology. Recent
works have although optimistically shown that single field models in more
general cosmologies can be consistent with these conjectures and hence there is
an optimism that not all such models lie in the swampland. However a paradigm
of inflation which has been shown to not be perfectly okay with the conjectures
is eternal inflation. So in this work, we discuss Tachyonic inflation in the
high energy RS-II Braneworld scenario in the context of the swampland
conjectures while also considering the possibility of swampland consistent
eternal inflation. We show that our concerned regime evades all the prominent
swampland issues for single field inflation being virtually unscathed. After
this, we show that the main conflicts of eternal inflation with the swampland
can easily be resolved in the considered tachyonic scenario and in particular,
we also discuss the exciting prospect of a Generalized Uncertainty Principle
facilitating the notion of Swampland consistent eternal inflation. Our work as
a whole reignites the possibility that there can be a swampland (and possibly,
quantum gravitationally) consistent picture of a "Multiverse".
