Sound money principles are making a comeback in crypto. The key difference? Fixed monetary policies with genuine teeth. Take Bitcoin, Cardano, and Midnight—each enforces hard supply caps that cannot be breached, no matter what. This structural constraint matters because unlimited issuance breeds unlimited inflation. By locking in maximum supply at the protocol level, these networks eliminate the monetary expansion problem entirely. It's less about ideology and more about economic design: you either code scarcity into the system, or inflation erodes value. That's the real innovation here.