Limiting display resolution calculation based on your vision, screen size and seating distance. The primary assumptions are that Nyquist limits the maximum usable display resolution to 1/2 the pixels and 20/20 vision limits to 1 arcminute. More detailed information on this topic can be found here https://www.homecinemaguru.com/can-we-see-4kuhd-on-a-normal-sized-screen-you-betcha/.
Recommended vision limits are 20/15 for under age 60, 20/20 for ages 60 to 70, 20/25 for ages 70 to 80 and 20/30 for ages over 80.