[squidbidness]

I do worry about programmers forgetting to check hidden layers even more than we may currently tend to ignore comments, so I worry about this adding parallel maintenance burdens even worse than the common problem of comments getting out of date with the code. Maybe there could be some way to have compile-time diagnostics or static tools to enforce updating of the documentation layers with the code. Though that could add obstacles to adoption, as the tools and meta-concepts would have to evolve along with the layering concept itself.