Limited Supply

I’m sorry, but it needs to be said: the dice thing is retarded. Not just because it’s shitty UX, either. Objectively, a correctly functioning and implemented cryptographic TRNG is a MUCH better entropy generator than asking a typical user to perform and encode 100 - or any number - of dice rolls. You can have imperfect or deliberately biased dice, a rolling surface that produces correlations, recording the wrong face, omitting or duplicating a roll, consciously or unconsciously rerolling unusual runs, exposing the written roll sequence, using an incorrect base-6 conversion, introducing modulo bias, entering fewer rolls than believed… etc. A TRNG can generate far more raw entropy, much faster, with less procedural error. The ONLY thing the dice roll is a hedge against is an incorrectly implemented TRNG - ie the exact flaw that the cold card had. But if you accept that you need a hedge against HWW entropy generation, then you need to ALSO accept that the procedure with which the wallet converts the dice roll into a seed is equally as likely to be flawed or malicious as the TRNG implementation. So your hedge against the wallet malfunctioning is only a partial hedge of one part of the failure mode; you are still vulnerable to any and all other possible flaws that the wallet might have. The only thing that can hedge against all possible flaws that a wallet might have is multi-vendor multi-sig. In this case, the dice would have protected you, but there are myriad other possible failure modes in which the dice would not have protected you -so either you implement multi-sig, in which case rolling dice is redundant, or you don’t, in which case there’s still multiple failure modes that you are exposed to, and no possible way to control for them all. Like the coldcard itself, it provides only the illusion of security. Similarly, a passphrase can either be remembered - in which case it is insufficiently high entropy to matter - or it needs to be written down, in which case IT MIGHT AS WELL BE ANOTHER SEED AND ATORED STORED ON ANOTHER DEVICE.