

so there’s an optimization problem in there somewhere
The optimization problem is actually the point of the study, encoded as PPD, which represents the density of a display’s pixel per degree of your eye’s field of vision. It says that any more than 53-94 PPD is imperceptible to most. You can see if your display makes the cutoff if you have the viewing distance and screen size here:
https://www.cl.cam.ac.uk/research/rainbow/projects/display_calc/




Who in the world is in that much of a hurry to continue using their phone 😅