Comment by safety1st
RSS came of age in a very different time, when the world of computing was more, for lack of a better term, workstation-centric. People wanted RSS clients that were similar to email clients, or maybe even integrated directly into the email client, and they had this idea that they should 'catch up' on everything that was published since their last session, almost like it was a job.
Nowadays people have an implicit understanding that the net is vast and infinite, it's beyond the ability of one man to fully catch up, and you're just tuning into a slice of the data stream.
RSS clients never really departed from their roots of showing reverse chronological lists of all the posts, but this UI loses usefulness when the data stream gets too big. Commercial social media saw an opportunity and decided to make the algorithm that arranges the feed totally opaque - with that achieved, they proceeded to auction off each spot in it and get rich. Even worse than the reverse chronological firehose.
What we lack is a presentation that is actually good! I don't have the answer. One thing I want to experiment with, though, is digests. I use a straight reverse chronological UI that aggregates all my items in all my feeds. One thing I noticed is that this ends up wildly biased toward feeds that have lots of posts, like news aggregator websites, or Reddit. Anyone who's foolish enough to work hard and produce wonderful long form content with less frequency, gets lost in the firehose, which may tell us a lot about how the collapse-in-progress of our civilization got started. I have no idea how to solve this and do better than the UIs and algorithms that rule the world today. I do have it on my todo list to try a digest style UI - like perhaps each website gets one entry per day in my feed, and if they made multiple posts on that day, those are represented as multiple small title links in a compact format. Whereas a less frequent poster might even get an excerpt along with their title or something.
In my opinion the answer is curation. If you're getting so many magazines and newspapers in the post that you can't read them all, the answer isn't to hire someone to cut out random pages for you to read (oh, why are they all adverts?), the answer is to stop subscribing to so many publications.
I never fail to read all of my social media feeds and email messages, because I actively cancel subscriptions to stuff that I don't have time to read. After all, it's entertainment/casual education, not mandatory learning.