Dependence of burst fluence on time since the onset of observations of FRB 121102 reported by Zhang et al. (2018). Gold points compensate for the scaling ﹩F\propto {t}^{-1/2}﹩ expected from multiple reflections of a single gravitationally lensed impulse. Gravitationally lensed burst fluence varies as ∼α⁻¹ with angular offset α from the BH equator (Figure 3), and the delay time as ﹩\sim \tfrac{1}{2}{\alpha }^{2}{R}_{w}/c﹩, where ﹩{R}_{w}\sim {10}^{4}\,{{GM}}_{\bullet }/{c}^{2}﹩ is the distance of reflecting disk fragments from the BH (Equation (28)).