Side View significantly expands creative possibilities on the web. People can be watching TED talks while concurrently browsing thru related materials -- which could be described as multitasked learning (or "multimodal learning.") This is similar to when people watch television while surfing the web on a tablet or laptop. Such experiences make best use of human attention and best use of time. Side View on a 1440p (or larger) monitor literally expands the canvas of ways we can communicate ideas with each other. I applaud Mozilla for inventing Side View and am hoping it will soon exit the add-on stage and be folder into the central Firefox code. Naturally, someone needs to be holding a contest for the most interesting uses of Side View...