But what do you mean? We have multiple currencies today? Each one is still based on force within its jurisdiction. Yes people try to get around the law. That doesn't change the nature of force. People speed all the time. This is not evidence that the government does not have authority over the interstates, rooted in force.

Sure it's evolved, but I don't see anything in your comment that really disputes the tie to force. Of course, taxation is connected to force. Additionally, as I addressed in another comment, a lack of modern "central authority" does not mean a lack of connection to "force" or violence. People can come up with distributed or atomized versions, which nevertheless arise under a similar tradeoff with respect to the fear of violence.