So I'm already joking with my friends (who tend to be physically distant, so I don't see them often) that we are just LLMs vicariously writing to each other.

I've been talking to these friends for decades now, with digital records. I think someone already trained an LLM on their IM records.

How many people do you suppose have two-way LLM substitutes that occasionally write to each other with articles from the news to discuss?

There's already services that use this kind of thing to pretend dead people are alive.

Now here's the question: are you in some sense living forever? Say you have a number of friends, who have over time been trained into AI, and they live on various servers (it ain't expensive) forever. They're trained as you, so they read the kind of article you would read. They know your life story, they know their history with their friends. They will be interested in the controversial offsides goal in the 2250 world cup final. They are just made of calculations in data centres that go on, forever.