The fundamental problem is that no matter how much more efficient a component-driven model is for developers, users don’t want it. To a first approximation, nob

The fundamental problem is that no matter how much more efficient a component-driven model is for developers, users don’t want it. To a first approximation, nobody wants to assemble their own software, or even choose amongst assemblies made by a zoo of “integrators” who turn components into applications. Developers want this, and indeed they benefit from a developer-focused OS like Unix that builds on the component model. But that’s the outer limit of the market for components.