I was tabbed away from chat.meatspac.es for around 10-15 minutes earlier tonight and realized my computer was starting to get toasty like when v2 first launched. Coming back to the page, I had 80+ (I stopped counting, in retrospect i probably could have jqueryed it) videos in total on the page. Seemed like it was also really slowing my computer down as well. Refreshing the page, and returning to the default 15 messages, everything sped up again, and now I'm typing this with my laptop on an ottoman waiting for it to cool down. Perhaps if messages are going to be added to the DOM while the tab is not active, then old messages should be popped as well? Not sure if that was a conscious decision to allow people to 'catch up'.

PS Before I alt-tabbed away, i was scrolled up to the top of the page. I'm not sure if that makes a difference when attempting to repro this, or if that might effect the pause/unpause behavior when in a different tab, but seemed like it could be important.

Chrome Version 38.0.2125.104
Mac OSX 10.9.5