Up the bitrate Twitch. We have 4k60 consoles and PCs that can run 4k120, theres zero reason why bandwidth should be limited by anything other than the streamer's ISP. If I have 1GBPS, I should be able to stream a 65000KBPS stream in 4k, practically eliminating artifacts. In addition, transcoding should be a ubiquitous feature. This would only serve to bring actual high quality content to anyone who has the desire to consume it. These artificial limitations are absurd, especially since YouTube has made massive endroads here.