Cardano has a fixed supply ceiling of 45 billion ADA tokens. This isn't just a protocol rule—the hard cap is baked into the blockchain's core, making ADA genuinely scarce in the digital economy. Think of it like Bitcoin's 21 million limit. Both are designed with intentional scarcity, not arbitrary decisions. For ADA holders, this means no surprise inflation dilutions. The supply curve was engineered from day one, giving the asset a quantifiable, verifiable scarcity that drives long-term value consideration.