You’re talking about the transition to modern language. While there may (or may not) have been a large single step around 100,000 years ago, the subject here is the common foundation that preceded it.
You don’t have to have much experience with dogs to know they understand words and very basic sentences around things they care about and understand (food, going for walks, prey, “business”, approval/disapproval).
You don’t have to have much experience with dogs to know they understand words and very basic sentences around things they care about and understand (food, going for walks, prey, “business”, approval/disapproval).