A robust alternative to 2FA has to take into account three super common scenarios:

- you are in a foreign city and have been mugged, your wallet and phone have been stolen from you

- you have dropped your keys down the drain

- you are homeless, your phone has just died, and your only computer is a public access library computer running Internet Explorer 6. you are not able to afford a monthly subscription to Bitwarden

@alexandria Don't leave out:

- you are a refugee and you just crossed a border.

@dalias @alexandria Reminds me of Paypal apparently not allowing to change your country…
@lanodan @alexandria @dalias It does. Once. I moved from NL to BE (had to send in passport copies) and back a few years later. My paypal is still on Belgium, which is no problem at all in practice except I pay a higher sales tax on European sales.