> By remembering your votes and views and doing a bit of collaborative filtering the site can give you a 'filter bubble' where things you are quite likely to li

> By remembering your votes and views and doing a bit of collaborative filtering the site can give you a 'filter bubble' where things you are quite likely to like float towards the top... The lack of such a "filter bubble" is why I actually treasure HN more than other similar news aggregation sites; it exposes me to ideas, sites, and viewpoints outside of those I'm normally interested in, whether I agree with them or not. :)