Months ago I would have said "yes, it's possible". Now, it's become pretty clear LLMs are a dead end. They're trained to simulate the internet and can't do other things with any reliability.
It's still possible with whatever the future approach to making computers smarter, though. Natural intelligence exists, and we're made out of the same stuff as everything else, so artificial intelligence must also be possible. And, without the limits of recent evolution, an AGI could probably be made far better than us.
Don't forget that pandemics used to be a goofy sci-fi trope, too.