so

passkey wallets don't solve the seed phrase problem

they just rename concepts. Now Apple, 1Password, etc is backing up your "seed phrase"

fundamentally the only people who have eliminated seed phrases are the zk folks who built wallets that can operate on zkp's of other identities

What do you define as the seed phrase problem? in my mind, the "problem" was:
1. A phrase that you have to back up, manually save etc
2. A single point of failure if you lose it

Passkeys address 1 with built in passkey managers, and address 2 to some extent with automatic syncing across devices etc.

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seed phrase problem -"do i have to custody a piece of information that I absolutely can't forget or lose"

- seed phrases
- user-held mpc shares
- your passkey root

if you can find convenient ways to delegate out that storage, that's cool-- but the same solutions apply across all of those