@enkiv2 @sonya The "Application" needs to die, give way to full composition.
The web had shown promise in the early days of IFRAME, but that proved to be a security nightmare, so it then regressed to centralisation and cross-domain protection.
Before that we had XPCOM, UNO, OLE/DCOM/ActiveX, NextSTEP's PDOs, but none of those things were mature enough to become ubiquitous, and the W3C increasingly seems to have become an end to a means.
Real alternatives are needed to all those.