Quantum will likely be able to break classical encryption within a defined period of time.

If you have an encrypted message, it can see the encrypted text and attempt to break it using a probability curve with a language model to identify outcome.

But when it comes to Bitcoin, or any keypair, the private key cannot be derived from the public key, so you need a different target to focus on.

Bitcoin’s defence isn’t just cryptography. It’s probabilistic obscurity.

What are you going after?

Wallet addresses with valid (high balances)?

Random, valid addresses?

The problem is not how easily will they break encryption, it’s how will they target which encrypted wallets to break?

Key rotation is going to become more important as we move towards the quantum singularity.

Quantum is useless without target selection.

Target selection requires information.

Bitcoin hides information by default until the precise moment of movement.

After that, key hygiene determines who gets hurt.