Aha! Okay, I'm coming across as a jackass. Okay, you are right. My apologies. I really do believe I have notice a flaw in how humans perceive the world and found a test that can be taught to people to very quickly evaluate transactions based on value. My internal jackass is coming out because I think I understand now why 50% (or more) of our population either sympathisez or has gone full communist and I am starting to have a pretty hard reaction to sloppy thinking which is the root cause of communist sympathy. It's also the root cause of why jews keep on winning and our people keep on losing. I am gathering a list of skillsets that we have to start teaching our people to make them immune to foreigners trying to scam them. Anyway, you are forcing me to work my way through the logic of this, so this is me writing it down. There is no expectation that you will read any of this or respond, I'm writing it down because I want to see if I can work my way down through the surface level logic. So, on your last few points: * CLAIM: tangible property is different from intangible property. There was a time where I wanted this to be true. But, a simple way to test this statement might be by asking a few questions: HOW are tangible and intangible properties different? If intangible property is different, is it even property? Is there actually such a thing as tangible property? Is there actually such a thing as property at all? The answer to all of the above is the same as the answer to the following questions: is math real or made up? Are the words that we speak actually real or are they merely abstract symbolic forms that we transmit over the air and all the ideas they convey are a figment of our imagination? The answer is it doesn't matter. For the purpose of actually having a conversation / doing stuff we simply deal with the abstract symbol we call "property" and assign a list of things we consider property. The reason that we do that is to simply give us the ability to enumarte the value of exchanging that property. I literally cannot write a single thing down that could not be property and owned by someone. I cannot even begin to imagine how any single item on that list of what could be owned could in any way be more or less different than any other, because, all things can be owned and all owned things a property and therefore only have one useful feature when trying to gage the value of the exchange of things you own: property. So, my thought on this is something like this: all things can be owned and therefore all things are property. The size, shape, colour or other property of each item that can be owned is irrelevant because those are just features of individual instances of property. All things can be owned, all owned things are property, we only care if things are property or not to judge the value of the exchange of property between individuals. Therefore the answer to your question "Does it matter if you don't notice squatters on your property" is simple: PROPERTY RIGHTS ARE DENIED - The squatters have denied me all sorts of rights to my property, including charging them rent, not charging them rent, some alternate agreement to the transaction. To put it another way, if you don't notice that someone stole your car, drove it around for 400 or 500 miles, puts it back and YOU STILL DON'T NOTICE that doesn't mean your care wasn't stolen and that your right to maximize the utility value of your car has not been impacted because now you have incurred 400 to 500 miles of wear and tear, depreciation and so forth. Lots of people get scammed by having a $2 scam item added to their monthly visa bill, just because they don't notice doesn't mean their property rights were not impacted. PROPERTY RIGHTS RESOLUTION - Well, in your example of squatters on my land, while I am right that my property rights were violated, you are right that the value of those property rights is probably 0 in this specific case if they also leave without me noticing. So the question then becomes, if the exchange of property results in a profit everyone is happy, if property rights are impacted we put the infringer in jail, but what do we do if the impact on my property rights is effectively $0? I say I have the right to hunt them down and shoot them. You may disagree. I think we can negotiation the price of 12 gauge shells I guess. :) Well, that is my take. I made the claim about property rights so the onus is on me to support the claim so I just wrote that down mostly so I can come back later and refer to it. Feel free to take it apart if you see anything egregiously wrong.