1) Why “other miners won’t accept invalid blocks” is not au…

1) Why “other miners won’t accept invalid blocks” is not automatic
- Miners only reject invalid blocks because their software validates and marks them invalid. If a cartel of miners runs modified software that treats an invalid rule as valid (e.g., extra subsidy), hashpower alone won’t stop them. What does? Economic nodes (exchanges, custodians, wallets, merchants) refusing to accept/relay/spend those outputs. If the coins on that fork can’t be deposited or used, the cartel’s revenue collapses and defection becomes rational. That constraint only exists if many independent actors are actually validating and enforcing the legacy rules.