Firstly, “best link” is a matter of opinion. When you have relinquished ownership of land and traded it to another, you have demonstrated that you consider the other person to have the best link. But you cannot relinquish ownership over your body. Unfortunately, I addressed this in the post that is pending moderation, so my full response is in limbo…
I’ll wait for your full response, as I’m not sure I follow your reasoning here.
The NAP. Estoppel. But with “voluntary” slavery, the slave does not aggress against his master by disobeying, so the master acts wrongfully when he uses violence against the slave.
The underlined part is only true if the master does not own the body of the slave: i.e. if he does own it, then he is not acting wrongfully, he’s just doing what he pleases with his own property.
So how does title-transfer theory apply in these cases? Well, I relinquish ownership of my apple tree. You can now claim it as your own. This is what Kinsella is talking about (I sort of went into this in my limbo post, but vive has told me that he can’t find it, so I may end up having to rewrite it or something). Kinsella is saying that you abandon (relinquish) ownership of your property, and now it is unowned, and someone else can claim it. This is what happens in an exchange.
You say an exchange occurs when property is abandoned by A, becomes unowned, and is then homesteaded by B.
I say an exchange occurs when property is transferred from A to B: with no intervening abandonment, lack of ownership, and then homesteading.
Does the difference between these two concepts of exchange manifest in physical reality? No, the exchange of a car, house, tomato, etc can be imagined your way or my way. In other words, it is a legal fiction. And it makes no difference whatsoever in any case of property exchange EXCEPT for the body, and only if you assume that the body cannot be abandoned.
Kinsella’s concept of exchange strikes me as tailor-built to justify his argument against voluntary slavery (VS), as that is the only instance in which it has different implications from the usual concept of exchange (whereby there is no abandonment intervening between A’s owning the thing and B’s owning the thing). I’d be curious if any other libertarian thinkers use this concept of exchange? And other than the desire to disprove the validity of VS contracts, is there any reason to adopt K.'s concept rather than my own?
A general comment: I feel like this entire debate over VS has suffered from an overly mechanistic view of property rights and property exchanges. Remember that it has nothing to do with physical-spatial relationships. The seller and buyer aren’t proteins locking into receptors. They are people. Property is an idea. If I own property, and I say “now you own it” (and you agree) then you own it - poof! As if by magic. There are no physical laws in operation. Whereas, I feel like this idea that abandonment is necessarily involved in exchange is like imagining I must physically drop the property, walk away from it, and let you pick it up or something like that.
You can go out into the world and exclaim, "I relinquish ownership over this apple tree! Anyone can come along and claim it as their property. This is in line with the ethic of reciprocity. You have said that you will respect anyone else’s claim over the apple tree…You cannot go out into the world and exclaim, “I relinquish ownership over my body!” What happens next? Can anyone just come along and claim your body as theirs?
Yes, like the apple tree.
What if they do?
Then it is their property, like the apple tree.
What happens when you don’t care to respect his claim of ownership over your body?
He might use violence against his property: i.e. my body.
You have done nothing to him.
Makes no difference, as he’s not doing anything to me either: he’s doing something to his property (my body), which used to be my property.
You are merely saying that you do not respect this aspect of “ownership”. If I don’t respect your apple tree, then you won’t respect mine. If I don’t respect your claim to own my body, then you won’t respect my claim to own yours. This is the ethic of reciprocity, the golden rule.
The whole point is that it isn’t “your body” anymore (i.e. not in terms of ownership, though it’s still yours biologically of course). By doing whatever he does with his property (“your body”), he is not violating your property rights.