Every altcoin creator controls their token's supply schedule. They write the code, they set the parameters, they can change the rules. Ethereum switched from proof-of-work to proof-of-stake in 2022 -- fundamentally altering its monetary policy overnight. Solana has experienced multiple network halts where validators coordinated restarts. Centralized control masquerades as decentralization in these systems. Bitcoin's supply cap sits hardcoded at 21 million coins. No CEO decides this (there is no CEO), no foundation votes on it, no developer team pushes an update to "improve" the economics. You either accept the protocol or you fork off into irrelevance -- which is exactly what happened to Bitcoin Cash, Bitcoin SV, and dozens of other pretenders.