content: Well there's different advantages, or lack of them, in 4k capture and production than there is in 4k display/playback and the advantages don't translate to all markets either. Cinema and TV playback aren't gonna see much advantage in displaying 4k, but will benefit from 4k production. Gaming and other visual oriented computing solutions will absolutely benefit from 4k display and rendering. As a viewer, 4k won't make a difference to image integrity unless you're right up on the screen where with lower resolution images you would see pixelation (assuming 4k monitor and 4k content). That pretty much makes it pointless, from a solely viewing perspective, for your average cinema and TV applications where you typically are seated at a comfortable distance from the screen and pixelation isn't an issue. It's much the same argument as the great audiophile debate about high sample rate playback devices (like the Pono) which while there are technical advantages in the production arena, the delivery resolution of CD quality audio already surpasses the limits of human recognition. However, increased resolution makes for increased detail, and hence realism, in production rendering so there are advantages for creating content in 4k, even if ultimately it is viewed at lower resolution. He covers that, a little, in the video. Though the dude could do with pacing himself and editing his script for clarity. Be aware that the arguments this video is presenting are entirely revolving around case specific considerations... Steaming video, to be consumed on computers (mostly) and specific to YouTube's current algorithms.