Ah gotcha. Well sometimes posts re-surface after many years as HN allows for that. I've often posted something that was on HN ten years ago, and have a whole ne

Ah gotcha. Well sometimes posts re-surface after many years as HN allows for that. I've often posted something that was on HN ten years ago, and have a whole new discussion, even if the URL hasn't changed! Some posts are given a second chance and are not deemed a 'dupe'.