I really have no idea how RSS feeds work other than the fact that, when a now post is made, Google Reader tells me. I subscribe to a lot of webcomics, so I guess it figured suggesting webcomics to me was a good idea. I can't really say much about other RSS feed programs, though they probably work through similar means.
By the way, there are currently 91 people who subscribe to Dawn of Time with Google Reader. Not terribly popular, but pretty good considering it's been around for only about 6 months.