Speaking form european perspective - and expanding on carapace's excellent post, this is a small concern. Speeding tickets are a particularly good example. My

Speaking form european perspective - and expanding on carapace's excellent post, this is a small concern. Speeding tickets are a particularly good example. My country's and neighboring country's driver and car registration & insurance systems aren't harmonized, and the police and judiciary are separate. Technically if I were to drive at excessive speed in the foreign country and get caught by automated speed trap, I would be able to return to my home country without any problems as the ticket is issued only after some processing. Since the foreign police doesn't have jurisdiction abroad, I could possibly live happily ever after, having committed this one misdemeanor. This of course would be unjust, but the damage is limited to one case. However there would still be the outstanding ticket in the foreign country, so upon a subsequent visit there they would insist and enforce me paying the ticket, or otherwise undergoing relevant legal proceedings. Which is to say, being able to create new identities is not a problem, as long as there's traceable property or rights - or even just my own physical presence (my body) - connected to the old identity, that police and judiciary can act upon. To wrap it up - no single digital identity needs to be imposed; merely certain connections between my digital identities and my assets, my ownership & similar rights (and perhaps corporeal presence) would need to be registered with the state. Which, curiously enough, is exactly what our current system requires an yway: we register with the state, or hold state-issued titles to, our major possessions like real estate or car or intellectual property rights or other such. Side note, we as a civilization have found out that anonymous, fungible titles unconnected to identity (i.e., "currency" and other anonymous financial assets) are a good idea in the longer run, in spite of various shady acts that are enabled by the anonymity.