Ask Evil-Knievel. It was his term. That's why ryanc put it in quotes when he used it:
Whatever - it's just silly joking.
But you are wrong @Danny, because backup is a very weak and very fragile point of a wallet's security.
That's mostly why I choose a brain wallet.
Another is convenience - why would I have to carry a file with me if all I need is my brain.
And no, I do not have my passwords written anywhere.
However I do have some hints written down.
But they are designed in a way that only I can understand their meaning.
Actually, only I can understand that these are the hints.
Start using your brains - that's all I have to say.
Don't buy into the bullshit that your brain is not smart enough to make a password that other people's brains can't hack.