
Having a stable social network provides a location to store data and enables me to forget details. My memory is outsourced
Living alone is very fragile. Requires memorization and limits learning
Animals are less social. Less stable less able to forget.
This says that it is not language and the society it enables and the ability to abstract that enables language that is the differentiation. Rather that is the result
The difference starts from the security and enablement of forgetting. Outsourcing data storage.