Many people are concerned about the threat of quantum attacks to Bitcoin (however, they never really care about the already rampant threats such as backing up seed phrase/private keys haphazardly, misusing wallets, and blindly trusting sugar-coated bullets). I want to tell these people: First, believe in science, believe in evolution. Quantum attacks will definitely come, but Bitcoin, Ethereum, and others are preparing to deal with them and are responding calmly... Even if a quantum attack does come, they will have enough resilience to cope. The only threat to Bitcoin, Ethereum, and others is complacency.