All posts

Somewhere in your house is a blue card with £3.08 on it. Multiply that by 95 million and you get TfL's least talked-about cash pile, and a surprising twin on the Bitcoin ledger.

A Briton in 1970 sat in a 12°C living room watching black-and-white telly, and still used more electricity than you do. Here is where it all went, and why the empty corner of one chart should worry us more than the fall itself.

NASA is flying to an asteroid "worth" more than the entire world economy. The scientist behind that number says it's meaningless, and her reason is the best lesson in scarcity you'll read this year.

Every card tap costs the shop about 6p, and Britain's annual bill for accepting payment has doubled in five years. Here is where the money goes, and who set the price.

Britain switched off its prison currency in 2018. Within months, inmates had reinvented money from scratch. What they chose tells you what money really is.

The Freddo was 10p for thirteen years. Cadbury itself now charges 45p, and cocoa only explains about 3p of the journey. A chocolate frog's guide to where your money went.