[duskwuff]

The 4k category was blown wide open in 2009 by rgba/tbc with Elevated [1] (live reactions: [2]). It demonstrated that 4k was more than sufficient for impressive effects and music -- suddenly, 64k was no longer an interesting constraint.

[1]: https://www.youtube.com/watch?v=jB0vBmiTr6o

[2]: https://www.youtube.com/watch?v=ro5grR_efG0