The analogy doesn't work for me. Server-side rendering is the equivalent of starting a program, waiting for it to give an "all initialized" sign and then dumping it's state. Next time, you just resume it on the saved state. (this is pretty much what dump-emacs does)
Except that the state is more compactly represented as the one-time element definitions, plus multiple instances, and the state has to be sent over the wire. Given the prominence low-bandwidth, high-latency mobile connections, this is critical. To me the key is very fast initial app setup in script. That should beat server-side rendering.
