This is really good for encrypted content such as a hard drive, password vault or gpg key

  • This is precisely for the master password of your password manager, the one you actually need to be highly secure but memorable

    That or passwords that won’t go there in practice, like computer boot passwords

    • Yeah, but my point is that I use my master password enough that random characters are still memorable while being faster to type. For me personally there isn’t really a use case where the easier memorability is worth the extra characters to type. But of course everyone is different, so it is good that this system is laid out for them with a great guide.