It would be great to have some guys here run a large simulation. I might be wrong, but I bet that there is a trade-off between "centrally organized" currencies

It would be great to have some guys here run a large simulation. I might be wrong, but I bet that there is a trade-off between "centrally organized" currencies versus "decentralized" ones. There might market potential for both. A centralized monetary system could have some disadvantages, isn't it?