The Surface Brightness Fluctuations (SBF) method, used to measure distances to nearby galaxies via the pixel-to-pixel variance in galaxy images, yields distance estimates that show systematic tensions with other distance ladder methods, particularly Cepheid variables and the cosmic distance ladder overall. The method assumes a specific stellar population model and photometric properties, but discrepancies suggest either unaccounted-for systematics in SBF calibration, variations in stellar population properties across different galaxies, or fundamental issues with how distance measurements are interpreted across different techniques (Tonry et al. 2001; Blakeslee et al. 2009).