Does Hong Kong’s Octopus card have too many tentacles?

Your extensible friend IN 1997, two months after Hong Kong reverted to Chinese sovereignty, it acquired a cutting-edge payment technology. People could rush through turnstiles with a wave of their colourful Octopus cards—stored-value cards pre-loaded with cash. Its latest advance, however, is risibly low-tech. On October 30th Octopus launched an extensible pole with a plastic […]