If anything this is more like the old internet, where there was only a few central wells of information, and with a few hours of daily browsing you could know "everything" that was going on.
Today it's dramatically more splintered than that. Still central wells, but the amount of content is many orders of magnitude larger and everyone has their own tailored feed.
I disagree, today there are just a few platforms and on Twitter at least everyone sees about same things. I say this because the feed of my girlfriend is very similar to mine, also I see the pretty much same stuff shared on WhatsApp groups of unrelated(related only because of some interest, not having social interaction beyond the group) people.
The total number of content is much larger, probably the absolute number of topics is also much larger, but in my opinion, the diversity of topics is getting smaller and it is directed by the platforms. People’s attention spans and time is limited and the platforms are choosing what they are going to fill it up with and what would be the main topics.
Today it's dramatically more splintered than that. Still central wells, but the amount of content is many orders of magnitude larger and everyone has their own tailored feed.