I don't think you can describe Bitcoin with symbols like
Cowrie shells that have intrinsic properties in your article. But all that can make sense, because barter is the beginning of the transaction.
I like the article that you created, the contents of which describe very valuable, then can conclude that Bitcoin will be the main tool as a transaction that will be used by the world.
Did you imply, "cowrie shells that do not have intrinsic properties ." I made an analogy between Cowrie Shells and Bitcoin when it comes to a medium of exchange. The lack of intrinsic properties for both Bitcoin and Cowrie shell disallow their usage in transactions until agreed upon by a community.