they can't be ranking everything on how fresh it is because it wouldn't work.
i want my newspapers fresh every five minutes, but i don't want a music shop that only sells the charts. and no one's going to like a bookshop that doesn't stock the classics.
the vast majority of information sites must be immune from this freshness stuff, surely.
imagine if you search for a poem, or a quote from a book. what does it matter how fresh it is?