Did you bother to click on any of the links, or did you just glance at the "news" page? Almost half of the links on the page ("technology", "check it out", "100% Postgres, 100X Faster for Analytics", or "(slides)") they explain how it works (and it makes sense, although I'd personally be very wary of installing this, due to not particularly trusting that it gets the implementation "correct").
You might need to update your about section on HN:
> "In an attempt to avoid losing my entire life to this website, I no longer comment as often as I used to, and, when I do, unless it is related to a topic (iOS jailbreaking) where it is part of my "job" to respond, I make it something of a policy to not look at things people say in response until at least a month later."
