Crypto currency is an encrypted data string that represents a unit of currency. It is monitored by a peer-to-peer network of specialised computers called a blockchain. The blockchain serves as a secure ledger of transactions of buying, selling and transferring. Cryptos are mined, that is created by computer jocks in places with plentiful electric supply.

Money, according to Ken Moore of Mastercard, comes in diverse forms, e.g. data, digital goods, CBDCs, cryptos, NFTs and even solar credits. All these diverse assets could be routinely exchanged in everyday transactions for products and services.

There are three key themes. One is the diverse forms of money. Second is the overlay of technology on physical events such as shopping or dining. It includes immersive experience. Third theme is sustainability — designing, marketing and selling of products. A cloud point of sales moves processing to the cloud, and enables merchants to use their smartphones as PoS terminals.