I mean. I have a little book on my desk with password hints. "2nd grade best friends phone number", "birthday of first dog". It also has a grid of random numbers/letters on the front page, so I can write "first_crush_b4*5". You'd have to have physical access to the book, and know what the hint leads to. It's un-hackable. I mean aside from social, or physically breaking into my house.

Which doesn't do a darned thing to keep your from getting phished. Which again, keeps popping up on HN, over and over and over.