Email innovated over many other messaging systems by adding structure. To/Cc/Bcc, Subject/Message.
Could it have gone further? Should it have mandated more metadata?
miniblog.
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Only ~15% of the stories on HN are interesting to me. It's a little higher on lobste.rs and subject-specific subreddits, but still <50%.
Is it worth building an ML based RSS reader/aggregator? This seems like a classic classification problem, but I worry about filter bubbles.
Subject matter experts tend to be much more precise in their wording. E.g. distinguishing between file and compilation unit in C.