I’ve put around 20 minutes (although up to 30 would probably be ok). I just find I lose attention after that and there are so many talks out there that I want to watch, having a limit would mean I could get more in!

As I understood it, its about the optimal length of a talk you are watching/listening to.

This is indeed true, though I answered this poll under the assumption that the speaker picked me up. And even then ~45 minutes is just the maximum. Then I need a 5 to 10 minute pause.

I could endure a 60 minute talk, though that wouldn’t be any joy anymore. And just “pausing” a talk that isn’t meant to be paused, doesn’t make it really better.