Coinbase urges the Bitcoin community to begin quantum-resistant migration immediately, well ahead of any formal announcement that a cryptographically relevant quantum computer has been built, because consensus changes take years

The first and largest cryptocurrency, spanning its price and adoption, mining, protocol politics, and its contested role as digital money and inflation hedge.

How changes to Bitcoin's rules get proposed, fought over and adopted, from improvement proposals and soft forks to upgrade debates like quantum resistance.

Whether quantum computers could break the cryptography securing Bitcoin and other blockchains, and how networks plan to migrate before that day.