Protocol sustainability is the capacity of a blockchain or DeFi protocol to remain economically viable, secure, and well-governed over the long term without relying on unsustainable token emissions or external subsidies. It depends on durable revenue, balanced tokenomics, treasury resilience, and active governance that can fund maintenance and development. It contrasts with growth models that depend on continuous inflationary incentives.
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- Sustainable protocols derive recurring revenue from fees or services that exceed the cost of security and incentives, hold diversified treasuries to weather market cycles, and adopt emission schedules that taper rather than dilute indefinitely. Governance mechanisms must be able to redirect funds toward maintenance, audits, and growth, aligning long-term contributor incentives with the health of the network.