At this moment you should ask someone from Texas how well their crypto-currency is serving them? It isn't. Without electricity there is no crypto-currency. For that matter there really is no currency because banks can't issue monopoly money without access to their database. Same goes for certificates or bonds or any other IOU that isn't the actual asset. Bottom-line: Stick with tangible items. You want to invest in commodities? Buy some land and buy some livestock.