#5. Private Property
Who defines what is private property? In an anarchist society, there is no commonly accepted definition. Some may choose to argue that intellectual property is private. Some may decide otherwise and begin acquiring that property for their own benefit. Some may argue that they have a right to food, and thus their neighbor’s surplus should be rightly theirs, seeing as how the creek from their property fed the crops next door. The farmer next door might argue that the creek actually belongs to him, since it flows across his fields. The beggar next door might argue that the fields are his, since he has been sleeping in them for longer than the farmer has sown them.
Without a firm definition of what constitutes private property, there can be no reliable transactions between parties. An anarchist society can attempt to define what is truly property, but they cannot enforce it, even if they all agree.