Edgelessness is in the web’s structure: it’s comprised of individual pages linked together, so its structure can branch out forever.
Edgelessness applies to the screens that show the web, because they offer an infinite canvas that can scroll in any direction for however long. Boy, do we take for granted that a screen can show more content than is able to be displayed in a single shot.
Later, he continues:
A quick example from my life: Twitter didn’t replace Facebook. The iPad didn’t replace my phone. My phone didn’t replace my TV. Now, I watch YouTube on my iPad, toss the video up to my TV, while checking Twitter and Facebook on my phone. It’s a little constellation of technology. But I keep asking myself: how many more things can I juggle? And for how long?
Read the whole thing - it's a storytelling and design experience that shouldn't be missed by anyone with any interest in how designing for the internet should work.
If you look hard enough, it translates to all forms of storytelling. One film-related example is crafting an interactive documentary experience, like Elaine McMillon's Hollow. Or any modern marketing campaign. It's about taking little pieces of a larger whole - a picture here, a tweet there, and creating a cohesive message that connects you with people who want to see your work. It's like a sophisticated method of tearing a bunch of pages out of a book and piecing them back together side by side.