I think this is largely correct, but I think we have to add that POSIX is not the future either. The model of process isolation and shared resources that is bui

I think this is largely correct, but I think we have to add that POSIX is not the future either. The model of process isolation and shared resources that is built in to the POSIX model is just too hard to get right. I think the post-POSIX world will have to look somewhat like the IOS model of isolation, something like the NIX level of packaging, and something like the Docker model of running. A shared filesystem where certain information is held in certain locations in the filesystem is just a nightmare to manage, but it is currently not possible to replace it.