To your first point, you're right, this post isn't about a study. It's about how much space a game is taking up on a drive. However, this thread started because we're comparing the game to a study about how much space the library of Alexandria would take up on a drive as well. Comparisons that require understanding how much space images take up in a game (like textures used for 3d models and such).

Again, I did make a small effort to look up that study. I would appreciate it if you could link to it since it's apparently so easy for you to find.

Part of the point of being on here is to ask questions and have a conversation with the public. I was giving the original commenter an opportunity to talk about a subject that I found cool and interesting, which he apparently knew more about.

Again, you're misunderstanding the question about 4k stuff. I'm wondering if they included images at all in the study that the original commenter is talking about, the ask about quality is secondary, but important to keep those numbers relevant.

To answer your questions about "what good is a study..." and "can I make a study...", go back an re-read my example on the Pokédim since that explains why it a study should include include an explanation of how they came up with their numbers.