With one big exception. There is only one (not 30 or 50 or 100) to have to remember (the master one) and it is one that someone will have to enter repeatedly (

With one big exception. There is only one (not 30 or 50 or 100) to have to remember (the master one) and it is one that someone will have to enter repeatedly (until they decide to change it) so they will eventually have enough practice to actually remember it.