  The physics of tunneling from one spacetime into another is often understood
in terms of instantons. For some instantons, it was recently shown in the
literature that there are two complementary "interpretations" for their
analytic continuations. Dubbed "something-to-something" and
"nothing-to-something" interpretations, respectively, the former involves
situation in which the initial and final hypersurfaces are connected by a
Euclidean manifold, whereas the initial and final hypersurfaces in the latter
case are not connected in such a way. We consider a de Sitter space with real
projective space $\mathbb{R}\text{P}^3$ spatial sections, as was originally
understood by de Sitter himself. This original version of de Sitter space has
several advantages over the usual de Sitter space with $\text{S}^3$ spatial
sections. In particular, the interpretation of the de Sitter entropy as
entanglement entropy is much more natural. We discuss the subtleties involved
in the tunneling of such a de Sitter space.
