How Facebook Live Streams to 800k Simultaneous Viewers

150 engineers can simultaneously build 10 startups! Not impressed.

This article says The Facebook is using MPEG-DASH. That's not what was reported by TFB in December. They suggest it's only RTMP. I've also seen reports of Flash being required on the desktop.

http://www.usatoday.com/story/tech/columnist/2016/05/09/flas...

https://code.facebook.com/posts/1653074404941839/under-the-h...

I suppose things change, but I would really like a discussion of the latency trade-off. RTMP is low latency. Every other streaming format (except for WebRTC) is high latency. If people expect a Skype or Facetime type interaction MPEG-Dash is not going to work.