Oh, capitalism. You had a good run. But then Transport for London decided to ask Uber to take some responsibility for the safety of its passengers, and thus did what 75 years of Soviet Communism failed to do and overthrew the entire economic system of the Western world. Thanks, Sadiq, thanks a lot. In the unlikely event you've missed the news, the story so far: TfL has ruled that Uber is not a fit and proper company to operate cabs, and revoked its licence. Uber has three weeks to appeal before its cabs need to get off the road. To commemorate this sad day, I've dragged Stephen Bush back into the podcasting basement, so we can don black arm bands and debate what all this means – for London, for Uber, for the future (if it has one) of capitalism. May god have mercy on our souls. Skylines is the podcast from the New Statesman's cities site, CityMetric. It's hosted by Jonn Elledge.