The real-time updates he's talking about don't require server-side processing - the google homepage switching immediately to the search view for instance - that

The real-time updates he's talking about don't require server-side processing - the google homepage switching immediately to the search view for instance - that processing can be contained within the Javascript application, and state is simply maintained against the server (and then by extension across other instances of the application). I don't imagine he's suggesting we try the same approach where server-side processing is required. If I have misunderstood you then I apologise.