> Imagine some LLM that is many generations ahead of Fable -- but from a different world -- visiting us. It would be amazing.

Why? Why would you expect it to be any more benevolent or any less murderous than the actual aliens visiting? Presumably it would be trained on their values, not ours.

Our values are murderous, I wouldn't want to be visited by aliens that shared out values. A galactic version of human society would quite reasonably identify that earth couldn't fight back then special interests would have our planet liquidated for its natural resources without making headlines in space-news. Possibly colonise us, kill all the humans then offer an apology a few generations later and maybe a small local holiday to commemorate the process.

Regardless, there aren't that many possible values aliens could have. It is hard to come up with something outside basic game theory - you can see how most religions tend to converge on the same practical principles over time, like basic property rights and not causing trouble pointlessly.

I wouldn't expect it to be less murderous than the aliens themselves. That wasn't my point at all. I'd expect it to contain all their knowledge and be able to live "forever".

But I generally wouldn't expect aliens to be "murderous" at all. Why send a group or probe lightyears away just to kill or enslave a primitive species? If they have the ability to do that, we wouldn't really have anything of interest for them.