Brunei's New $500 and $10,000 Banknotes

Starting today, Brunei will have two new currency notes replacing the old $500 and $10,000 notes. When I mentioned this to some people, they laughed. Most of them have not even seen the old $10,000 note, so it does not matter whether there is a new note replacing it or not. While it is true that not many of us will be using those but should you come across one of them, you would realise that