6. The Difficulty Adjustment Algorithm (DAA): The Market Heartbeat
Part of Chapter 01: Bitcoin Architecture & Satoshi Consensus Foundations
- 2,016-block difficulty retarget epoch (precisely two weeks)
- Maintaining the 10-minute target block interval
- Why increased mining hardware cannot inflate Bitcoin supply
In physical commodities like gold or copper, when price surges, mining companies deploy more capital, extract more metal from the earth, and increase annual supply, pushing prices back down.
Bitcoin prevents this with the Difficulty Adjustment Algorithm (DAA). Every 2,016 blocks (~14 days), the network compares the time it took to mine those blocks against the expected 20,160 minutes.
If more miners join and blocks are found in 8 minutes, the network increases difficulty by up to 300%. If miners leave and blocks take 12 minutes, difficulty drops. This guarantees that block issuance remains strictly tied to clock time regardless of how much computing power attacks the network.
Hash rate follows price, and difficulty follows hash rate. A rising difficulty metric proves long-term miners are deploying billions of dollars in new capex infrastructure.
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All Lessons in Chapter 01
Bitcoin Architecture & Satoshi Consensus Foundations (10 Lessons)