[quote=@Fabulous Knight]
[@Kho]Well, none of this really gets to the back of the issue.

What do the Hain know (at their maximum technological extent)? Where are we on that list in the OP?
[/quote]

As far as I can see from the IC, they have an understanding of home, emotions, stone tools (including stone-tipped spears), bow and arrow, community, language, entertainment (that story), names, and the making of rawhide (but not leather).