PSA: This is the live streaming URL. An archived version will be available a few hours after the talk with the rest of the archived talks, on media.ccc.de [0]
All talks at 36C3 are live-translated between English and German, and into one additional language (in this case, French)) [1].
If you find any talks on the schedule [2] that seem interesting but are in a language you're not fluent in, use the 'native'/'translated' switcher in the video player.
[0] https://media.ccc.de/c/36c3
[1] https://c3lingo.org/
[2] https://fahrplan.events.ccc.de/congress/2019/Fahrplan/index.....
