Do most people have a "safe where they keep their personal belongings"?
i guess it would presumably be on-premises, because you're going to have to take it out to add recovery codes to it every time you add a new TOTP or whatever (or create a new private key or password) right? If it was, say, a safety deposit box at a bank, odds are it's not gonna wind up with most of your stuff. Even on-premises, the task of making sure "cold storage" stays sync'd with my evolving passwords, private keys, TOTP recovery codes, etc, seems like something I'm unlikely to keep up with.
