This is a must-read/see article full of joy (and pain) for visually obsessed people. It’s a tribute to symmetry and a rebuke to non-random, unexplained errors in achieving it.
Centering is more than a computer science problem. We struggle with centering all the time, from hanging frames on the wall to landscaping. In another world, centering is also central to data science, as in standardized scores and other rescaling operations. Centering gives us a baseline against which to compare everything else. Our brains love this symmetry (as explained here and elsewhere).