Same as Fig. 1, but for 2016–2024. First panel: light curve shows historical Great Dimming. Second panel: prior to Dimming, we can see a major long-lasting outflow velocity, followed by extreme infall velocity. Third panel: during Great Dimming, gradients were uniquely negative, suggesting a strong expansion of the inner layers. Fourth panel: before and after Dimming, there are two significant peaks in the FWHMs, while the latter peak was much stronger. Both peaks are caused by a passing shockwave.