1 and 2 are fine points, point 3 to me is what I was getting at, just with a more portable system rather than something cloud-provider specific Containers are

1 and 2 are fine points, point 3 to me is what I was getting at, just with a more portable system rather than something cloud-provider specific Containers are exciting precisely because they don't care about how good or crappy your language interpreter or app server happens to be, whether you run your own data center or use a cloud, etc.