  In their Comment [arXiv:2102.03842], Haas et al. advance two hypotheses on
the nature of the shape transformations observed in surfactant-stabilized
emulsion droplets, as the theoretical models that us [Phys. Rev. Lett. 126,
038001 (2021)] and others [P. A. Haas et al. Phys. Rev. Lett. 118, 088001
(2017), Phys. Rev. Research 1, 023017 (2019)] have introduced to account for
these observations. (1) Because of the different surfactants used in
experimental studies, the physical mechanisms underpinning the shape
transformations may, in fact, differ in spite of the extraordinary resemblance
in the output. (2) The theoretical models are mathematically equivalent by
virtue of the small magnitude of the stretching and gravitational energies. In
this Reply, we argue that neither of these hypotheses is well justified.
