Vine manages to overcome the biggest constraint for video on the internet: inertia. When I am going to post a video on Facebook or Twitter, I am doing so with the understanding that not everyone who sees the video is going to bother pushing play and watching it. Whereas a photo or 140 character statement can be consumed in one shot – like a serving of tequila, or a food pill. What Vine does for video is like what turning a meal into a pill does for food. I can consume video after video knowing the payoff is never further than 6 seconds away. And since it repeats, you can condense your message with the goal of hooking the audience long enough for it to sink in.