@xenu I was just listening to your latest episode. The reason you didn't mesh with Max Hillebrand is probably because he meandered a lot and did not have an actual grounding of property rights.
Praxeology is sufficient for economics, but it gets you nowhere in philosophy because it relies on having said philosophy as a baseline. He skimmed through a lot of economics to get at business cycles etc. (probably due to time constraints, and bad planning) which would probably get you confused if you hadn't read the same books that he had.
Going by your description, on actually trying to get at Privacy as a value this guy tried to mangle Hoppe's Argumentation Ethics into getting him what he wants, which is just so retarded on multiple levels. Argumentation ethics basically goes like this:
To attempt to deny self-ownership entails a performative contradiction, as the act of arguing itself presupposes the exclusive control of one's body and resources.
This can elegantly get you property rights, but a lot of surface-level libertarians either misapply it or mangle it beyond recognition because they can't understand basic logic (eg.: Dave Smith).
In my opinion, the actual way to get at Privacy is as a consequence of these property rights:
- Property rights exist. You can get at this from Philosophy or Praxeology.
- Because property rights exist, you must adhere to the Non-Aggression Principle when interacting with others. You can deduce this from Praxeology/logic.
- Given self-ownership, that implies certain boundaries where others may not affect your body without entering a contradiction or, put simply, undermining your righteous control over yourself.
- Since you own your body, you can exercise your control to exclude others from it; This is privacy.
There's a lot more work to be done where it comes to privacy in the realm of ideas, like someone photographing you or listening in on a conversation. I think this mostly boils down to contract theory, but it gets pretty tricky because you can't, for example, own your likeness -- because you can't own the concept of a certain arrangement of facial features, it's non-scarce.
I'd like to flesh all this out in a logically air-tight way in the future, but suffice to say that this Hillebrand guy doesn't cut it. You hit the nail on the head when you said that he's not standing on much ground, because he has no hard philosophy, it's wishy-washy pragmatist thinking; having a end goal in mind and mangling your arguments until everything fits.