ZGR23's extinction versus our predicted extinction for Gaia BP/RP stars. Panel (a): Our mean posterior extinctions versus the ZGR23 extinctions to stars as 2D histogram. The 16^th, 50^th, and 84^th quantiles of the ZGR23 extinctions for each bin of our mean extinction are shown as blue lines. The respective quantiles of our predictions in bins of the ZGR23 extinctions are shown as orange lines. Panel (b): Same comparison but for our posterior mean predictions for the ZGR23 measurement uncertainties, $\sqrt{{[n_{\sigma }(\xi )\cdot {\sigma }_A]}^2+{\sigma }_a^2}$, versus the ZGR23 uncertainties. Note that the predictions for the ZGR23 measurement uncertainties are not the uncertainties of our extinction predictions. See Section 4 and in particular Eq. (18) for further details on the quantities shown here. The bisectors are shown in red. The colorbars are logarithmic.