[learc83]

>Without hand writing, or something like it, to act as a physical artifact and provide shortcuts to skip over expensive processes of trial and error, I doubt that a codified language, borne of strictly oral traditions among small pods of disorganized dolphin social groups, would survive across generations, to jump the inheritance gaps introduced by being hunted nearly to endangered status by predators like us.

There are many examples of Native American tribes that didn't lose their languages despite being nearly wiped out by disease and lacking written language.