>>34
For example, have you tried to picture what a posthuman society would look like? It seems to me that it would only work as a form of anarchy as nobody can coerce anyone anymore (nor harm in any physical way). Only mutually beneficial endeavours would exist (such as people teaming to work on some software or hardware project, collecting resources, or just creating art).
At a minimum I take a posthuman society to mean one where minds are ran as software (in specialized or general purpose hardware), and such society might have molecular nanotechnology for atom-scale automated manufacturing, but this is not absolutely required (although costs would be quite high without it).
A post-scarcity society would be one where automated manufacturing is commonplace (thus making software=hardware, except for energy/matter cost), but where mind-as-software is not the primary mode of existence for a person (still mostly human wetware). In the post-scarcity case, anarchy is inevitable as everything except matter and energy becomes de-facto public goods (and you can re-use matter and energy costs might be manageable for the individual to shoulder, or at least for a collective endeavour only meant for generating such energy).
However, the main problem with anarchy is that it's unstable when poked with a sharp stick - it can be destabilized by violent groups who think something else than you. Of course, you can't really put the genie back in the bottle once true molecular assemblers become commonplace, but physical warfare is possible and even greatly enhanced by such automatic manufacturing capabilities, hence you're stuck with something unstable and possibly painful for the parties involved (not as painful as 1984-style scenario where the state runs state-wide panopticon which becomes easy to implement given the hardware advances assumed in this example).
The only way to truly stabilize such physical anarchies is to make it very difficult to almost impossible to physically coerce or harm anyone, but to do that, you'd need to transition into a posthuman society where mind is ran as software and mind state backups are distributed across a wide network with a well-thought out design (think p2p like, but distributed across wider spaces, such as the solar system). In such a scenario, it becomes literally impossible for any laws to be enforced, except laws that people choose as a protocol between each other and to which they consciously ascribe and follow (not being born or forced into). Such laws could make sense as far as entering into cooperative endeavours/projects as well as finding a common ground for communication (think RFCs), but such laws would be more similar to our current TCP/IP stack or common file formats than legal law.