@penzlik
Coinbase (custodian of roughly 5% of all BTC, reported) says Bitcoin should start the quantum migration now.
Its advisory board puts ~7M BTC in exposed addresses (approximate data, not confirmation). About 5M of that is address reuse, mostly by active users, exchange cold wallets included.
Everyone argues about Satoshi's coins. Much of the risk sits in wallets that can move today.
No quantum machine breaks this yet, but migration takes years. Freeze or not, frens?