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We study inclusive $b \to s\gamma$ decay in the context of electron EDM andbaryogenesis. The general 2HDM (i.e. without $Z_2$) that possesses an extra setof Yukawa matrices can drive electroweak baryogensis via $\lambda_t {\rmIm}\rho_{tt}$, where $\rho_{tt}$ is the extra diagonal top Yukawa coupling,with the $e$EDM constraint evaded by an exquisite flavor cancellationmechanism. We touch upon the current status of direct search for exotic $H$,$A$ and $H^+$ scalars at the LHC, while for the plethora of flavor observablesin $g$2HDM, we focus on $b\to s\gamma$, pointing out $chiral$ enhancement of a$\rho_{tt}\rho_{bb}$ effect in $g$2HDM, which can bring in a CPV phase. Wefirst explore the inclusive ${\cal B}(b \to s\gamma)$ rate, then showcase theprogress that Belle II can make in the future, illustrating a potential3$\sigma$ effect for the inclusive $B^+ \to X_s^+\gamma$ vs $B^0 \toX_s^0\gamma$ CPV rate difference, $\Delta A_{\rm CP}$. Especially if $e$EDMemerges swiftly, perhaps one should pursue further upgrade beyond Belle II.

$b \to s\gamma$, electron EDM and electroweak baryogenesis: a study in general 2HDM