01It stands on the four pillars at once. Any three without the fourth is a better book, not a different category.
02It returns control to the participant. How much to stake, which sources to trust, which host to credit, whether to field an agent. Admission is a public rule fixed before the wager and evaluated the same way for everyone. Self-exclusion on the participant's own instruction, with effect everywhere.
03It strips every discretionary middleman. Payment rail, settlement agent, identity custodian. Each replaced by code, by the counterparty directly, or by a party bound to act when a public rule is true and to give a reason when it does not.