Money is a man-made concept. To me that means anyone can decide what money is and what money to use. To the point it is not even called money but currency or debt. I can't spend the time because I hate typing text. Find people who can argue about what money is. The first step to know you are on the right direction is if you realize anything can be money. Than you can start thinking what good and the best Money can be. Since there are so many people there will be many conclusions. But successful money also means it is accepted and used by many/most others. One doesn't have to be absolutely right. A lot will be better than fiat !