Growth doesn't just mean using more resources. It also means using less

If you can do something for one ten-thousandth the cost it used to be, you'll feel pretty rich.

The Atlantic's Noah Smith has written on whether capitalism actually does require growth to continue. He argues:

Looking at history, we see that the biggest challenges to capitalism actually came during times of rapid growth. The early 20th Century was the heyday of communism, anarchism, and socialism. But this was a time of immense growth, technological progress, and increased material standards of living. It seems possible that those alternatives to capitalism gained popularity precisely because rapid growth disrupted the stable social systems that had been in place before the Industrial Revolution.

Clearly there's something problematic in that analysis; the "stable social systems" in place before the Industrial Revolution had very little in common with capitalism as we know it today. It may well be the case that the age the joint-stock company didn't require growth in the same way that modern financial capitalism does.

Smith does, however, argue that finance doesn't require growth either, because interest comes not just from an expectation of growth but also the value of consumption smoothing. That is, people will put up with having less money in the future in order to have income now, and interest is a reflection of that.

But the whole argument is rather a moot point, either way, because it's so frequently brought up in the context of a second claim: that growth requires exploitation of resources, and that if we desire an economy which doesn't carry on tearing up the planet, we need to accept that that economy will be "steady state".

There is clearly a grain of truth here. Famously, the history of America can be described, in economic terms, as a country continually dealing with financial issues by physically growing; first expanding south, then west, and then eventually overseas in the form of the pseudo-protectorates the US now runs. And an end to resource extraction would definitely hit growth rates enormously, if for no other reason than that it would require the world's economy to be completely retooled around renewable energy and recycling usable material from waste, which wouldn't happen painlessly.

But it's simply not true to say that growth can only come from increased abuse of the environment. My favourite illustration of the falsehood comes from a two-year-old piece by Alexis Madrigal:

Imagine you've got a shiny computer that is identical to a Macbook Air, except that it has the energy efficiency of a machine from 20 years ago. That computer would use so much power that you'd get a mere 2.5 seconds of battery life out of the Air's 50 watt-hour battery instead of the seven hours that the Air actually gets. That is to say, you'd need 10,000 Air batteries to run our hypothetical machine for seven hours. There's no way you'd fit a beast like that into a slim mailing envelope.

That, right there, is growth. For the energy cost of running one laptop twenty years ago, you can now run 10,000. That's an annual growth rate of just under 60 per cent.

Clearly, energy efficiency in portable computers over the last 20 years is one of the most rapid measurable increases in technology ever, but nonetheless, it puts paid to the idea that all growth can be is increasingly extractive.

We should be planning for an economy which takes only memories and leaves only footprints — but that's not the same as planning for an economy with no growth. Though George Osborne might wish to convince you otherwise, that would be an unnecessary disaster for all concerned.

Some MacBook Airs, engaged in naughtiness. Photograph: Getty Images

Alex Hern is a technology reporter for the Guardian. He was formerly staff writer at the New Statesman. You should follow Alex on Twitter.

Photo: Getty
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Jeremy Corbyn sat down on train he claimed was full, Virgin says

The train company has pushed back against a viral video starring the Labour leader, in which he sat on the floor.

Seats were available on the train where Jeremy Corbyn was filmed sitting on the floor, Virgin Trains has said.

On 16 August, a freelance film-maker who has been following the Labour leader released a video which showed Corbyn talking about the problems of overcrowded trains.

“This is a problem that many passengers face every day, commuters and long-distance travellers. Today this train is completely ram-packed,” he said. Is it fair that I should upgrade my ticket whilst others who might not be able to afford such a luxury should have to sit on the floor? It’s their money I would be spending after all.”

Commentators quickly pointed out that he would not have been able to claim for a first-class upgrade, as expenses rules only permit standard-class travel. Also, campaign expenses cannot be claimed back from the taxpayer. 

Today, Virgin Trains released footage of the Labour leader walking past empty unreserved seats to film his video, which took half an hour, before walking back to take another unreserved seat.

"CCTV footage taken from the train on August 11 shows Mr Corbyn and his team walked past empty, unreserved seats in coach H before walking through the rest of the train to the far end, where his team sat on the floor and started filming.

"The same footage then shows Mr Corbyn returning to coach H and taking a seat there, with the help of the onboard crew, around 45 minutes into the journey and over two hours before the train reached Newcastle.

"Mr Corbyn’s team carried out their filming around 30 minutes into the journey. There were also additional empty seats on the train (the 11am departure from King’s Cross) which appear from CCTV to have been reserved but not taken, so they were also available for other passengers to sit on."

A Virgin spokesperson commented: “We have to take issue with the idea that Mr Corbyn wasn’t able to be seated on the service, as this clearly wasn’t the case.

A spokesman for the Corbyn campaign told BuzzFeed News that the footage was a “lie”, and that Corbyn had given up his seat for a woman to take his place, and that “other people” had also sat in the aisles.

Owen Smith, Corbyn's leadership rival, tried a joke:

But a passenger on the train supported Corbyn's version of events.

Both Virgin Trains and the Corbyn campaign have been contacted for further comment.

UPDATE 17:07

A spokesperson for the Jeremy for Labour campaign commented:

“When Jeremy boarded the train he was unable to find unreserved seats, so he sat with other passengers in the corridor who were also unable to find a seat. 

"Later in the journey, seats became available after a family were upgraded to first class, and Jeremy and the team he was travelling with were offered the seats by a very helpful member of staff.

"Passengers across Britain will have been in similar situations on overcrowded, expensive trains. That is why our policy to bring the trains back into public ownership, as part of a plan to rebuild and transform Britain, is so popular with passengers and rail workers.”

A few testimonies from passengers who had their photos taken with Corbyn on the floor can be found here