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@@ -130,7 +130,9 @@ thermodynamic discontinuities in the elastic moduli at T$_{\mathrm{HO}}$ \cite{ghosh_single-component_nodate}. The observation of discontinues only in compressional, or $\Aog$, elastic moduli requires that the point-group representation of \ho\ is one-dimensional. This rules out a large number of -order parameter candidates \brad{cite those ruled out} in a model-free way, but +order parameter candidates +\cite{thalmeier_signatures_2011,tonegawa_cyclotron_2012,rau_hidden_2012,riggs_evidence_2015,hoshino_resolution_2013,ikeda_emergent_2012,chandra_origin_2013} +in a model-free way, but still leaves the microscopic nature of \ho~ undecided. Recent X-ray experiments discovered rotational symmetry breaking in \urusi\ @@ -585,6 +587,7 @@ our modulated phase somehow "moduluated \afm" (can you modualte AFM in such as way as to make it disappear? Some combination of orbitals?)} The corresponding prediction of uniform $\Bog$ symmetry breaking in the \afm\ phase is consistent with recent diffraction experiments \cite{choi_pressure-induced_2018} +up to \brad{needs a caveat about temperature, so that we're being transparent}. This work motivates both further theoretical work regarding a microscopic theory with modulated $\Bog$ order, and preforming \rus\ experiments at pressure that |