I am getting ready to do a video on resolution as it pertains to riflescopes and I stumbled onto this nice tidbit from quora:
While I think of a good way to explain this, consider a concept of “acuity vs superacuity”. It is directly relevant to observation devices and riflescopes. Human eye acuity is roughly equivalent to 3000×3000 pixels seen on a 19″ screen, two feet from your eye, while superacuity bumps it up to 18000×18000.
Let that sink in, while I plan a video on the subject.