[andrenotgiant]

The point I was trying to make is this:

With every new capability from Googlebot comes new opportunities for us to screw it up as developers.

If we were to replace PAGE with URL, and URL is simply a serialization of application STATE, we could easily end up with infinite URLs that lead to STATES that are not really that different, unique or appealing as answers to queries users type into Google.

When deciding how to build Search-accessible Web Apps, and specifically what to expose to Google, we need to keep in mind that Google likes PAGES that follow the requirements I detailed above.