You are correct of course but in my experience with Docker so far, it's much easier to get into this mindset, the more ephemeral your "disposable unit" is insom

You are correct of course but in my experience with Docker so far, it's much easier to get into this mindset, the more ephemeral your "disposable unit" is insomuch as VMs tend to stick around longer than Docker containers and occasionally you might find yourself saying, "this is ok for now" but your barrier for that is higher if you have to deal with things more often in flux.