Sorry, here's a slightly more serious attempt at a decent comment: my hunch is that most of what people look for in Docker could be accomplished by simple file system isolation and a few env variables. Something that could be hacked together with chroot and shell scripts.
This much simpler solution could be replicated in basically any decent OS and wouldn't require shipping an entire Linux kernel and deal with slow IO and the network hoops to jump through on anything that isn't Linux.
The same directory of ready-made solutions that Docker enjoys today could be rebuilt uppon this simpler stack.
When you realize that linking to the right libraries gets you most of the way there already, you begin to think there's a gem of a solution hidden in plain sight among all this mess.
This much simpler solution could be replicated in basically any decent OS and wouldn't require shipping an entire Linux kernel and deal with slow IO and the network hoops to jump through on anything that isn't Linux.
The same directory of ready-made solutions that Docker enjoys today could be rebuilt uppon this simpler stack.
When you realize that linking to the right libraries gets you most of the way there already, you begin to think there's a gem of a solution hidden in plain sight among all this mess.