Hong Kong is leading the world to create a cashless society, long a futurist’s dream.

In Hong Kong, just about everyone carries an Octopus card — a rechargeable, contactless card that is passed over a scanner to access almost every train, bus or ferry. The territory’s 6.75 million inhabitants make nearly seven million Octopus transactions each day, worth about HK$48 million (US$6.12 million). More here.