[memorysafety]

> [...] So a quantum computer would be pretty bad for Bitcoin in its current state.

Your reasoning is sound. But it won't be as bad. I'd claim, not much worse than dealing with leap seconds.

For 2 reasons: • Post-Quantum Cryptography exists. • The updated (quantum-resistant) Bitcoin will get renamed back to Bitcoin.

I agree your parent could use a review. I failed to read them any far.