I was thrilled to be able to spend the day with a good friend of mine Bill Frakes who was speaking at the UF College of Journalism and Communications, but one part of our conversation struck a particular cord. It was the need for 6K video. While most think it is overkill, he had a good point; pretty soon our 1080p video is going to look "like old news reel."
With 4K being as easy to shoot with as any other video (thanks to the new GoPro). Check out their latest promotional video on a Retina MacBook Pro. Let is load the 4K version and you'll see what he was talking about.
The nice part about where the pixel wars are evolving is with Retina Displays we are very close to having all of our displays with a high enough pixel density to hit a limit on what is actually needed to capture a high quality image and display it at a resolution that is indistinguishable from real life.
Fortunately for you gear heads, the 1080p vs. 4K vs. 6K vs. 8K battles might be over in a few years and camera manufacturers can focus on high dynamic range of sensors once we can achieve a high enough resolution to fully trick the human eye.