The public square was never perfectly public. It excluded, distorted and rewarded performance. Its saving virtue was not purity but friction: claims had to survive contact with people who had not been selected for agreement.
A place that remembersA journal can restore a little of that friction. It can keep an argument visible after the feed has moved on and place a new essay beside the older claim it quietly revises.
The useful archive is not a vault. It is a conversation with a long memory.