I just had an idea. What if there is a tool which algorithms create a brain wallet password from the fingerprint (or from multiple fingerprints of the hand)? Every fingerprint is unique. Therefore every password created by the algos will be unique, too.
Thus, one would never run into the risk of losing his or her password anymore. Perhaps there is something already. However, I do not know it.
it's a good idea but whether it can work well and something that is impossible to use the fingerprints as security of bitcoin wallet, in fact this way will be a little tricky.