This is a meta question, but I made a comment here twelve hours ago, and now it's showing the original post was from only 3 hours ago and that my comment was only 2 hours ago. What's going on with that? You can also see if you look at my comment profile history when I made that comment twelve hours ago it has the time correctly marked there but not in this thread.
oh that's interesting how do posts get queued there
EDIT: i see they are picked manually "HN's second-chance pool is a way to give links a second chance at the front page. Moderators and a small number of reviewers go through old submissions looking for articles that are in the spirit of the site—gratifying intellectual curiosity—and which seem like they might interest the community."