I think that is spot on. As for: > I'm not sure how solid plans to keep applications from stealthily generating derivatives of the data they manipulate. I can

I think that is spot on. As for: > I'm not sure how solid plans to keep applications from stealthily generating derivatives of the data they manipulate. I can imagine some sort of separation would have to happen at the browser level where the "app" provides a scaffold and the browser replaces in your data. I don't believe Solid will be able to "enforce" anything - worst case, apps can just not use Solid. I see Solid as the technology that enables apps to respect your control of the data, but the incentives for implementing that has to come from elsewhere, e.g. customer demand or legislation. (Again, personal views, not necessarily Inrupt's.)