Unlike bitcoin, nothing I say in this comment can change the ownership of a safety deposit box. A few more things: 1. Ownership of the deposit box is not defin

Unlike bitcoin, nothing I say in this comment can change the ownership of a safety deposit box. A few more things: 1. Ownership of the deposit box is not define by pin holders 2. Deposit boxes are tangible 3. Deposit boxes and contents have intrinsic value 3. Forgetting a pin doesn't effectively destroy the box and contents 4. The security of a deposit box is not defined by only math I'm not trying to be pedantic, I'm just saying it is more complicated than that.