This is just one of several cases of lost bitcoin supply and holdings which can never be recovered. I have read of several instances and cases where people have either forgotten their login keys, wallet IDs or hard wallet details and in so doing, have lost their accumulated bitcoin forever. In most cases, these were people who never anticipated the wild growth of bitcoin. Unfortunate as it is, this is the reality and it continually reminds us of the need to keep our digital wallets backed up and safe.