A simple backup scheme for wallet accounts

The discussion revolves around the challenges and proposed solutions in managing cryptographic keys, particularly focusing on ensuring their availability and proper inheritance. The scheme mentioned does not address the issue of key availability or establish a disciplined approach for key inheritance. However, it is argued that the problem of availability can be effectively managed through redundancy, given computers' proficiency in storing and copying data. Despite some suggestions like utilizing OP_RETURNs or inscriptions for backup, such methods are deemed unnecessary and potentially cost-prohibitive in the long run.

The conversation highlights the significant difficulty in securing correct key management practices among cosigners, including heirs, which poses a substantial barrier to adoption. Questions are raised about the feasibility of implementing durability guarantees independent of user discipline and identifying suitable mechanisms for heirs without any key material.

A potential solution for non-technical users is suggested in the form of 'assisted self-custody with custodial fallback.' This approach allows individuals to maintain control over their keys with the assistance of non-custodial services that remind them about key management and coin refresh. In extreme cases where all other options fail, a moderately trusted third party could gain access to the funds, thereby limiting the need for trust only to situations of complete failure rather than as a standard requirement. This proposition aims to strike a balance between user autonomy and the practical challenges of key management and inheritance.