I don't agree with the author. Passwords are difficult to remember and easy to steal. Example I saw: old people write their card's PIN code on it because they c

I don't agree with the author. Passwords are difficult to remember and easy to steal. Example I saw: old people write their card's PIN code on it because they cannot remember it. Everyone knows how to use it, you say? I think that for an average, not computer-loving type of person, a hardware key is the best solution. You don't need to remember anything: just insert the key and press the button. Why aren't they popular? I think because they are not a standard and are not built in. You don't get a free key when buying a laptop or a smartphone and that's the main reason why nobody is using them. But there already are applications that don't use passwords. For example, Telegram (IM application): when you install it you only have to enter your phone number, it sends the code in SMS, the app reads the code without user's interaction, and authenticates the device. No passwords, no need to remember anything. I don't like this (it is not convenient for those who use a burner phone number for registration), but for a more typical user it is convenient and doesn't require them to remember anything. I think we will see more passwordsless authentication in the future.