I see you are trying to be funny here, you don't need "bionic" eyes to see the screen clarity difference, maybe you are the one with "amblyopia" eyes...? I would suggest you to have it checked asap! Lol
Your theories, seriously all jokes. What,
5inch or smaller, 720p and 1080p cannot see difference,
6inch or smaller 1440p and 1080p cannot see difference.
I really doubt if you have ever compared them before coming out with those theories, as I'm looking at both of my Note 2 and Note 3, both at 5.5 to 5.7 inch and the clarity is very noticeable, especially for the Texts and Icons.
You are just one of those people who gave negative comments for the transitions, just like during 2012-2013, from 720p to 1080p transition, SO many people say confirm cannot see difference one, in the end all diam diam after launched.
And your 1080p and 4K TV display also another damn joke theory, go and see for yourself at all the stores, if you really cannot see the difference, your eyesight must be damn bad, I suggest you go and see an ophthalmologist.
PS: Oh and by the way, if you got anything about me, you can speak directly into my face, you don't have to hide behind other people's comments to do so.