As a practical matter, how can we leverage voluntarist cooperation? The technology exists that can eliminate central authority by making it obsolete (bitcoin expanded into the realm of smart contracts). But when the crash happens, we still have the problem of dismantling the violence of state (what to do with all those nukes)?
Who makes the decision? Each of us individually. But there's an organization problem. The solution to that is DAO (Decentralized Autonomous Organization, or Distributed Anonymous Organization) that has as its jurisdiction, the internet. The Anarchitecture of Politically Decentric Systems might be turned inside out...
Not sure I like what I see with Cicada DDD (Direct Digital Democracy), but one of its strengths is representativelessness (no representatives - the technology "presents" you instead).