Who decides what's "no longer used"? It's reintroduction of trust and antithesis to Bitcoin. If such changes will appear on BSV chain, its tokens'll likely lose a lot of value
If you move your money it's used. If you don't touch it for 100 years the hash function will be cracked and the "sunken" money can be reused. If you ask me: another ingenious feature.
& if it isnt touched in 10 years? 5 years? 1 year? 6 months? when was the last time you 'touched' your retirement account? & cracked hash function is a different issue.
It cant be recovered if the hash function isn't cracked as far as I understood. Cracking the function takes time. Therefore moving your money before 100 years or so will make it used.
Hacking signing hash function is fine with me, I don't see manipulations with ledger that avoid signing anything on the protocol level, which was the idea on SV side, as valuable