Exactly. It doesn’t make sense to talk about this topic without reading and understanding that spec first. The “px” unit has already been virtualized. It’s a

Exactly. It doesn’t make sense to talk about this topic without reading and understanding that spec first. The “px” unit has already been virtualized. It’s already based on visual angle (or the idea of visual angle), and notably not absolute display distance (because of TVs, projectors, and now VR goggles).