There being terms and relations doesn't mean that they relate in the way that is supposed here.

"writing" isn't a technology in a video game that you research and improves the knowledge preservation instantly. It has a lot of components that it needs to be effective in the way that is described here, and it really wasn't that effective even coming to way later ages than the age that it was "found"(?).

The relations described here aren't anologous to "Ai separated humans from language" so they seem like just some arbitrary things to say on the side.