Bitcoin’s 21 Million Paradox: Everyone Wants Cheap Transactions. Who Pays for Security?

**Bitcoin could become more valuable—and still struggle to pay its miners.**

Cheaper transactions. Better scaling. More Lightning payments.

All worth celebrating.

**But as the block subsidy shrinks, transaction fees are expected to fund more of Bitcoin’s security.**

And more adoption doesn’t automatically mean more fee revenue.

An ETF share can trade without moving bitcoin. Thousands of payments can share a single settlement.

Scaling can strengthen the economics—if enough new demand follows.

**That’s Bitcoin’s 21 million paradox: how do we keep payments affordable, miners funded, and the monetary promise intact?**

The supply is capped. The security bill keeps coming.