[dboreham]

Like it or not the socket has become the demarcation mechanism we use. Therefore all software ends up deployed as a thing that talks on sockets. Therefore you can't/shouldn't put functionality that belongs on the other end of the socket inside that thing. If you do that it's no longer the kind of thing you wanted (a discrete unit of software that does something). It's now a larger kind of component (software that does something, plus elements of the environment that software runs within). You probably don't want that.

[pjmlp]

The irony is arguing for monolithic kernels with a pile of such layers on top.