This is the "Interesting part of that article"....
Post# of 96879
"We need to make changes in the encoder, the CDN, and the player to attack latency," Law said. "We want to enable scale while minimizing latency. One way to do this is by shifting to CMAF and chunked encoding. Instead of waiting until the end of a six-second segment, [the encoder] outputs a couple of frames to the CDN, and the player can be decoding the front of the segment while the encoder is encoding the tail end of the segment."