Why were Vines 6 seconds? #VersionHistory

So, I have a clip from 2013 of two of the founders talking about why they picked the time. >> One of the questions that we get all the time is why is it 6 seconds. So, we started at 5 seconds and we went all the way up to 10.And what we found was that like the quality of the video didn't really change at all, but it became a real pain in the butt to watch a 10-second video. So, we went back down to five, but a lot of people were saying like, "This isn't enough time. I can't like capture what I want." So, wh ...