I don't really see what you're saying. That doesn't appear to apply to any of the examples I gave: AirBNB, Grubhub, Github, YouTube, etc. Or if it does, it ap

I don't really see what you're saying. That doesn't appear to apply to any of the examples I gave: AirBNB, Grubhub, Github, YouTube, etc. Or if it does, it applies to a small part of the site. Again, the claim is: most sites are mostly static content.