I'm ok with duplicates, especially when there's something else going on today that makes another look interesting. It can be helpful when submitting an old link

I'm ok with duplicates, especially when there's something else going on today that makes another look interesting. It can be helpful when submitting an old link to add a comment such as: Interesting in light of recent discussions around the physics of gyroscopes and the brain's adaptation to balancing on a unicycle.