  The bubble of nothing is a solution to Einstein's equations where a circle
shrinks and pinches off smoothly. As such, it is one of the simplest examples
of a dynamical cobordism to nothing. We take a first step in studying how this
solution transforms under T-duality in bosonic string theory. Applying
Buscher's rules reveals that the dual solution features a singular, strongly
coupled core, with a circle blowing-up rather than pinching off. This naive
approach to T-duality solely accounts for the zero-modes of the fields after
dimensional reduction on the circle. For this reason, we argue that this is not
the full picture that the T-dual solution should depend non-trivially on the
dual circle. We point out evidence to this effect both in the gravity
description and on the worldsheet. A more complete description of the T-dual
object would require a full-fledged sigma model for the bubble of nothing.
Nevertheless, inspired by similar examples in the literature, we detail one
possible scenario where the stringy bubble of nothing is mediated by closed
string tachyon condensation and we discuss its T-duality.
