Why would that only apply to abandoned wallets?
In a scenario where you have a powerful enough quantum computer and are able to break the encryption you can access any wallet (I.e. the system would be done, and the value would be zero).
In a scenario where you have a powerful enough quantum computer and are able to break the encryption you can access any wallet (I.e. the system would be done, and the value would be zero).
But on the other hand there are people looking at those abandoned wallets and if money start to flow out from them someone will ask questions.
A new wallet cert would be created that uses more bits. Enough that a brute force even with a quantum CPU would take too long. Then you transfer the funds to the new wallet. Abandoned wallets might be claimed during this transition but overall the deflationary trend of btc won't really be effected long term.