Opening them up again is a possible creative move. For example 'Dune', a far future where AIs and computers are banned and highly taboo because they caused too much trouble. Or there's alternate paths from the actual past such as steampunk in which we pushed mechanical engines further instead of switching (!) entirely to electronics.
There are many stories to tell in the age of AI. I've yet to find a good Luddite novel that explores how the technology might be taken by the commons, rather than hoarded and made to serve capital (the way governments have been). There's plenty of stories to tell around exploring university of ethics once we have a truly non human intelligence to reckon with. Accelerando spent just as much time exploring the legal implications of non-human intelligences as it did the underlying technology.
Greg Egan is far more interesting and spares you that.
(I may just be forgetting; it's probably at least a decade since I last read it.)
I did wonder about what it would be like embodied as a space probe encountering an alien that had also gone through the same process. That is now the sort of scifi that appeals.
https://en.wikipedia.org/wiki/I_Have_No_Mouth%2C_and_I_Must_...
The passage about audio books that works by having a camera above your book and someone remotely reading it to your headphone, is entertaining.
And 3d tv was a success.
Nevertheless, still a great story.
It's basically fantasy except the magic is, to varying degrees, rooted in real science and physics. There is of course the whole hard/soft sci-fi continuum that determines just how rooted it is, with soft sci-fi being pure fantasy with sci-fi veneer and hard sci-fi being fantasy that's physically plausible.
As actual science and technology advances and as society changes what we imagine will change. Sci-fi imagined today will either deal with AI and what AI is really shaping up to look like or it will imagine futures where AI has been abandoned for some reason (like Dune).
In other words, it allows writers to talk about culture with a technological flair. It's still valuable later because it was really about the culture. The tech also enables wild scenarios, that often come true later on.
That's a superficial view of both Sci-Fi and Fantasy. Sure, there's a lot of schlock out there which essentially functions as this sort of meaningless escapism for the reader. But proper Sci-Fi and Fantasy is philosophical in a way that makes them radically different, if not diametrically opposed.
Fantasy stories typically depict a society in decay, with evil ascendant, and characters who yearn to return to a time of past innocence. It's ultimately backward looking and conservative. When it functions as social commentary, it's a critique of the alienation and impersonality of modernity.
Science Fiction is forward-looking. It asks "what if" questions about the limitations of our modern society by inviting us to view a society that has been freed from those limitations. It challenges our ideas about human nature. It's ultimately progressive, even when it depicts dystopian governments.