Also, I'm not sure we want a full rendering on the server. That will make the page appear to have a longer loading time rather than the other way around. Unless I'm misunderstanding what you're trying to say.
It does sound interesting though. I'm looking forward to your follow up posts.
If the string rendering is your initial page[0], why would it be difficult for crawlers do index pages?
> Also, I'm not sure we want a full rendering on the server. That will make the page appear to have a longer loading time
Servers tend to be beefy and have caches up the ass. Serving a pre-rendered "home" has been found time and again to be faster than generating it from the raw data on the client, and definitely gives the impression of faster loading.