I think the author's point is: > I can give my coworker a docker image and it mostly "just work" without failing because she happens to be running a slightly d

I think the author's point is: > I can give my coworker a docker image and it mostly "just work" without failing because she happens to be running a slightly different version of Ubuntu with different system libraries present. "I can give my coworker a VM image and it mostly "just work" without failing because she happens to be running a slightly different version of Ubuntu with different system libraries present." and also: "I can give my coworker a full system container image and it mostly "just work" without failing because she happens to be running a slightly different version of Ubuntu with different system libraries present."