Emergency access uses public key exchange and encryption/decryption to allow users to give a trusted emergency contact permission to access vault data in a zero knowledge encryption environment:

See documentation here: https://bitwarden.com/help/emergency-access/#:~:text=Emergency access uses public key,emergency contact (the grantee).

For password management I moved to bitwarden as proton pass was not there yet. I like bitwardens’s zero knowledge emergency access. I can have emergency contacts access my account in the event I am no longer able to.

So as weird as it sounds not all infinities are equal. For example there is an infinite set of odd numbers. That set will never include the number 2 though.