I think Waterluvian's point was that _before_ you start talking about things like containers, namespaces, images and so on, you need to explain the basics. Depe

I think Waterluvian's point was that _before_ you start talking about things like containers, namespaces, images and so on, you need to explain the basics. Depending on the previous knowledge, your summary may or may not make sense. If you don't know what containers, namespaces or images mean here (basically, you haven't seen docker before), then your summary makes no sense. If you're a programmer, you most probably have heard about OSes and VMs before, one way or another. Then, the analogy is a bit easier for the beginner to understand. Hence the "slightly wrong but somehow still manages to be a bit informative"-summary Waterluvian gave can teach the beginner the first steps.