general-purpose simulators which simulate conversations that agents, oracles, genies, or tools might have
Good formulation, but in the spirit of the article I would say "might have had". Being per definition trained on existing material they can produce likely imitations of conversations that already exists. One would suppose the value of a conversation between oracles and geniuses would be to produce something new, on effect text that is more than the statistically likely output.
Good article, thanks for linking it.