Why is it page.restore and not browser.restore?

[dylan1951]

This stores and restores the session data for a browser (all URLs) right? So why does it seem like we're setting it for a particular page with page.session.*.

For example you can open a page, do page.session.restore, close the page, open a new page and the session data will still be there. So clearly it's not tied to a particular page.