I love that this concept tries to separate content from apps. Ever since I saw some of the ways early GUIs differed from today's, I've had a feeling that we've lost something with the way apps in today's desktops are completely isolated from each other. The Alto let you compose data live from multiple windows kind of like a shell pipeline does for command-line apps: https://www.youtube.com/watch?v=AnrlSqtpOkw

The Locus and Flows in this concept seem like they could enable a similar workflow, as data isn't confined to "apps" the way it usually would be.