It happened to me before that some stories only with two votes go to the front page but I think it's based on time, the longer the article spends on new stories

It happened to me before that some stories only with two votes go to the front page but I think it's based on time, the longer the article spends on new stories more difficult it goes to front page. I'm note sure if the Karma has any influence on this. Anyway I'm pretty happy how HN sorting algorithm works, meaning even with two votes you can go to the front page if it's quality article will remain on front page otherwise you are going to the second page. This is smart system because every article has a chance to go to the front page and on the front page the "human factor" who will decide the destiny of an article. Not like many other sites that you need "million" votes to go to the front page meaning quality stories can be lost because people visiting the front page is much greater than people visiting upcoming articles page.