The Dynamics of Human Sociality

I wouldn't go very strongly in the direction that they can sign goes, but I do think there are aspects of this idea that you couldn't have a language of your own that seem interesting and important to explore. The first issue you raised, no, my mind's just gone blank, so I had to end up with this. If we take our Moon AI Hermit case, I think over one generation, you can sustain that. It would be very hard to understand how any current modern human could interact with an entity 40 generations older than them.