Comment by crazygringo

TouchID is a good starting point... though it does confirm your password weekly.

Somewhat tongue-in-cheek, but if I lose my memory, how am I supposed to remember the 7 (or 5) friends who have my password...?

Somewhat less tongue-in-cheek, if you really wanted to be serious about your friends not being able to produce your password now for the lolz, then you'd actually want to ensure they were merely acquaintances who didn't know each other and couldn't find each other, e.g. not all Facebook friends. In which case the list of friends becomes essentially as important as the password, and then how do you remember where you've stored that list?

In reality, hopefully you can just entrust your master password with your closest family (spouse, parent, adult children), assuming they're not going to drain your bank account or read your private digital journal.