Average magnification experienced by presumably foreground deflectors including (bottom) or excluding (top) for magnification bias effect that mostly affects the rapidly declining high end of the stellar mass function. Without magnification bias, a flat nearly unity mean magnification at all redshifts is recovered to within ∼1%. When the magnification bias is turned on, as expected in actual observations, no rapid rise is found (∼10% at z ∼ 1 for the most massive or luminous galaxies). Cuts in stellar mass are expressed in units of 10¹¹ M_⊙.