Those scenarios are very realistic, and I think many people will suffer from these problems. I don’t expect that people will use LLMs responsibly. If they did, many of these problems could be mitigated, but obviously that’s not going to happen.
It’s basically very similar to what happened to physical health when work was done by machines instead of muscles. Nowadays, people don’t carry hay bales or buckets of water, and it shows. Undoubtedly, the same thing will happen to the mind as people rely on LLMs to do the thinking for them. As a bonus, you’ll get voters who are even more ignorant than they currently are. What could go wrong with democracy at that point… Mussolini showed how to decommission the whole system through democratic means.