Some of the solution(s) have already been played out a few times, we humans use our imagination(s). Everything that has been built with computers was just an idea a few decades ago.
In the 80's there were a few slices of thoughts, why are you interested in computers? They won't go very far... or we don't know how to make money from them...
IT, Computing, the Internet has for the last 25-30 years been stuck thinking about shopping and billing.
The brute force statistical copy and paste we see today, it may or may not replace a large part of the internet systems, but there were always many other aspects of computing or the world that computers could be used for that have hardly been touched.
To any social media platform's (if any of them can really be called this) that are saying they can not or will not police their own platform's of dangerous content, really you will be held responsible!
Just because the big IT corp's might become blinded they will live in fear of being on the brink of extinction, if they replace the creative people or their customer's. To the CEO's and management sucking billion's/trillion's of dollars out of the market(s) this can't continue.
There has to be change(s) because we have boxed ourselves into weird position(s), i.e always chasing the cash cows.
We are not even at the start of what's possible, what "people" will/could create in the next 50 years, with the right levels of education and inspiration the computing world will most likely not be stopping or slowing down any time soon.