One of the first displays I came across (after passing the Insolvency Institute on the way in) was this explanation of electronic money. Apologies for the image quality of this and those below. The light was low and I was shooting through glass display cases. Here's what it says: Plastic cards offer a convenient way of making, recording, or deferring payments by the movement of electronic pulses. Technology has been developed to make cards which are secure, durable, compatible with different networks across the world, and which bear built-in evidence of ownership. They work by linking directly to central computers; some recent cards even contain their own microchip, enabling them to perform a range of complex functions independently." Great. Money that thinks while it's in your pocket. And talks! But to whom...